chore(renovate): optimize dependency update strategy

Add rate limiting, grouping, and minimum release age to reduce PR volume while maintaining weekly updates. Groups related packages (electron, react, testing, build tools) to batch dependency updates.

Author: afonsojramos

renovate.json

@@ -9,6 +9,9 @@
   ],
   "labels": ["dependency"],
   "rangeStrategy": "pin",
+  "prConcurrentLimit": 3,
+  "prHourlyLimit": 2,
+  "minimumReleaseAge": "3 days",
   "packageRules": [
     {
       "matchDepTypes": ["engines"],
@@ -22,7 +25,59 @@
     {
       "description": "Fetch changelog details for twemoji packages",
       "matchPackageNames": ["@discordapp/twemoji"],
-      "sourceUrl": "https://github.com/jdjdecked/twemoji"
+      "changelogUrl": "https://github.com/jdjdecked/twemoji"
+    },
+    {
+      "description": "Group all GitHub Actions updates",
+      "matchManagers": ["github-actions"],
+      "groupName": "github-actions",
+      "labels": ["dependency", "github-actions"]
+    },
+    {
+      "description": "Group non-major npm updates",
+      "matchDatasources": ["npm"],
+      "matchUpdateTypes": ["minor", "patch"],
+      "groupName": "npm-non-major"
+    },
+    {
+      "description": "Group Electron ecosystem packages",
+      "matchPackageNames": ["electron", "electron-builder", "electron-log", "electron-updater", "@electron/**"],
+      "groupName": "electron"
+    },
+    {
+      "description": "Group React ecosystem packages",
+      "matchPackageNames": ["react", "react-dom", "react-router-dom", "@types/react", "@types/react-dom", "@types/react-router-dom"],
+      "groupName": "react"
+    },
+    {
+      "description": "Group testing packages",
+      "matchPackageNames": ["jest", "jest-*", "@types/jest", "ts-jest", "@testing-library/**", "nock", "babel-jest"],
+      "groupName": "testing"
+    },
+    {
+      "description": "Group Primer design system packages",
+      "matchPackageNames": ["@primer/**"],
+      "groupName": "primer"
+    },
+    {
+      "description": "Group webpack and build tools",
+      "matchPackageNames": ["webpack", "webpack-*", "ts-loader", "css-loader", "postcss-loader", "html-webpack-plugin", "copy-webpack-plugin", "mini-css-extract-plugin", "css-minimizer-webpack-plugin", "terser-webpack-plugin"],
+      "groupName": "webpack"
+    },
+    {
+      "description": "Group Tailwind CSS packages",
+      "matchPackageNames": ["tailwindcss", "@tailwindcss/**", "tailwind-merge"],
+      "groupName": "tailwind"
+    },
+    {
+      "description": "Group Babel packages",
+      "matchPackageNames": ["@babel/**"],
+      "groupName": "babel"
+    },
+    {
+      "description": "Group GraphQL packages",
+      "matchPackageNames": ["graphql", "@graphql-codegen/**"],
+      "groupName": "graphql"
     }
   ],
   "customManagers": [