Add linting and formatting, lint and format files (#234)

This PR does a bit of general tidying up:

- Replaced `rimraf` with an event that fires on `eleventy.before` `build` events and uses Node’s `fs.rm` method to clean out destination directory instead
- Removed unused dependencies (`sass` and `standard`)
- Updated `package.json` metadata
- Removed unused `netlify.toml` config (we don’t host the site on Netlify)
- Fixed front matter for the Mission patches page so that the correct title and description is shown on the sitemap (currently says `{{ title }}` and `{{ description }}`
- Removed temporary files in image folders which are creating empty entries in the sitemap
- Updated links that point to entries on previous `designhistory.app` domain
- Relatedly, fixed broken links that assumed entries had the same root path
- Optimised images (reducing total image directory size from 163 MB to 136 MB… worth it, not sure!)
- Fixed malformed Markdown (spotted some incorrect syntax for links and headings)
- Fixed malformed YAML front matter
- Added linting tasks and configuration; these don’t run automatically, perhaps we can decide how, if and when we want to run these
- Formated Markdown, YAML, JSON, JavaScript and SCSS files using Prettier
- Linted JavaScript using ESLint
- Linted SCSS using Stylelint
- Removed the screenshot scripts; do anyone use these?
- In addition to formatting Markdown files with Prettier, and fixing malformed Markdown, tweaked syntax where better alternative available. Examples include:
  - using figure caption instead of a paragraph of bold text before an image
  - changing heading levels to always start at level 2
  - see e842006

Only done this in a few places, where spotted issues, but thought it was worth pointing out all the same.

Author: paulrobertlloyd

.github/dependabot.yml

@@ -1,17 +1,17 @@
 version: 2
 updates:
-- package-ecosystem: npm
-  directory: "/"
-  schedule:
-    interval: daily
-  open-pull-requests-limit: 10
-  ignore:
-  - dependency-name: markdown-it-anchor
-    versions:
-    - 7.0.0
-    - 7.0.1
-    - 7.0.2
-- package-ecosystem: "github-actions"
-  directory: "/"
-  schedule:
-    interval: "weekly"
+  - package-ecosystem: npm
+    directory: '/'
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 10
+    ignore:
+      - dependency-name: markdown-it-anchor
+        versions:
+          - 7.0.0
+          - 7.0.1
+          - 7.0.2
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    schedule:
+      interval: 'weekly'

.github/workflows/codeql-analysis.yml

@@ -1,22 +1,22 @@
 # For most projects, this workflow file will not need changing; you simply need
 # to commit it to your repository.
 #
-# You may wish to alter this file to override the set of languages analyzed,
+# You may wish to alter this file to override the set of languages analysed,
 # or to provide custom queries or build logic.
 #
 # ******** NOTE ********
 # We have attempted to detect the languages in your repository. Please check
 # the `language` matrix defined below to confirm you have the correct set of
 # supported CodeQL languages.
 #
-name: "CodeQL"
+name: 'CodeQL'
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ main ]
+    branches: [main]
   schedule:
     - cron: '38 15 * * 3'
 
@@ -32,39 +32,39 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        language: [ 'javascript' ]
-        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby' ]
+        language: ['javascript']
+        # CodeQL supports ['cpp', 'csharp', 'go', 'java', 'javascript', 'python', 'ruby']
         # Learn more about CodeQL language support at https://git.io/codeql-language-support
 
     steps:
-    - name: Checkout repository
-      uses: actions/checkout@v5
+      - name: Checkout repository
+        uses: actions/checkout@v5
 
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v3
-      with:
-        languages: ${{ matrix.language }}
-        # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file.
-        # Prefix the list here with "+" to use these queries and those in the config file.
-        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
+          # If you wish to specify custom queries, you can do so here or in a config file.
+          # By default, queries listed here will override any specified in a config file.
+          # Prefix the list here with "+" to use these queries and those in the config file.
+          # queries: ./path/to/local/query, your-org/your-repo/queries@main
 
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: Autobuild
-      uses: github/codeql-action/autobuild@v3
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below)
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v3
 
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
+      # ℹ️ Command-line programs to run using the OS shell.
+      # 📚 https://git.io/JvXDl
 
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
+      # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+      #    and modify them (or add more) to build your code if your project
+      #    uses a compiled language
 
-    #- run: |
-    #   make bootstrap
-    #   make release
+      #- run: |
+      #   make bootstrap
+      #   make release
 
-    - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v3
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3

.prettierignore

@@ -0,0 +1 @@
+**/*.html

.prettierrc.json

@@ -0,0 +1,21 @@
+{
+  "semi": false,
+  "singleQuote": true,
+  "tabWidth": 2,
+  "trailingComma": "none",
+  "overrides": [
+    {
+      "files": "*.md",
+      "options": {
+        "embeddedLanguageFormatting": "off"
+      }
+    },
+    {
+      "files": "*.scss",
+      "options": {
+        "printWidth": 120,
+        "singleQuote": false
+      }
+    }
+  ]
+}

.stylelintrc.json

@@ -0,0 +1,4 @@
+{
+  "extends": "stylelint-config-gds/scss",
+  "ignoreFiles": ["_site/**/*.css"]
+}

app/_components/email/_index.scss

@@ -6,7 +6,10 @@
   margin-bottom: nhsuk-spacing(8);
   max-width: 40rem;
 
-  h1, h2, h3, h4 {
+  h1,
+  h2,
+  h3,
+  h4 {
     @include nhsuk-font-size($size: 26);
     @include nhsuk-typography-weight-bold;
     margin-bottom: nhsuk-spacing(4);