github: add issue template forms (#1764)

Convert our existing issue templates to [forms][1] to make it easier to
get helpful bug/feature info.

Issues created from a template will have a `triage` label applied by
default, indicating that it needs to be looked at by someone from the
team. After an issue has been triaged/validated, this label should be
removed. Hopefully this will make it easier to track issues that are
ready to be worked on.

[1]:
https://docs.github.com/en/communities/using-templates-to-encourage-useful-issues-and-pull-requests/configuring-issue-templates-for-your-repository#creating-issue-forms

Author: gcurtis

.github/ISSUE_TEMPLATE/01-bug.yaml

@@ -0,0 +1,86 @@
+name: Bug Report
+description: File a bug report
+labels:
+  - bug
+  - triage
+body:
+  - type: textarea
+    id: description
+    attributes:
+      label: What happened?
+      description: >-
+        Also include what you expected to happen and any other relevant details.
+    validations:
+      required: true
+  - type: textarea
+    id: repro
+    attributes:
+      label: Steps to reproduce
+      description: >-
+        What specific steps can we take to reproduce this issue?
+        Including a script would be much appreciated!
+      value: |
+        1.
+        2.
+        3.
+  - type: dropdown
+    id: commands
+    attributes:
+      label: Command
+      description: What Devbox command were you running when the bug occurred?
+      multiple: true
+      options:
+        - add
+        - auth
+        - create
+        - generate
+        - global
+        - info
+        - init
+        - install
+        - rm
+        - run
+        - search
+        - services
+        - shell
+        - shellenv
+        - update
+        - version
+  - type: textarea
+    id: devbox-json
+    attributes:
+      label: devbox.json
+      description: Please include a copy of your devbox.json file.
+      render: "jsonc"
+  - type: input
+    id: devbox-version
+    attributes:
+      label: Devbox version
+      description: "Paste the output of `devbox version`."
+    validations:
+      required: true
+  - type: input
+    id: nix-version
+    attributes:
+      label: Nix version
+      description: "Paste the output of `nix --version`."
+  - type: dropdown
+    id: system
+    attributes:
+      label: What system does this bug occur on?
+      options:
+        - macOS (Intel)
+        - macOS (Apple Silicon)
+        - Linux (x86-64)
+        - Linux (ARM64)
+        - Other (please include in the description above)
+    validations:
+      required: true
+  - type: textarea
+    id: logs
+    attributes:
+      label: Debug logs
+      description: >-
+        If possible, reproduce the bug with the `DEVBOX_DEBUG=1` environment
+        variable set and paste any output here.
+        For example: `DEVBOX_DEBUG=1 devbox run -- mycrash.sh`.

.github/ISSUE_TEMPLATE/02-feature.yaml

@@ -0,0 +1,32 @@
+name: Feature Request
+description: Suggest an idea or new feature
+labels:
+  - feature
+  - triage
+body:
+  - type: textarea
+    id: problem
+    attributes:
+      label: What problem are you trying to solve?
+      description: >-
+        Describe the problem you're trying to solve with this feature.
+      placeholder: I'm always frustrated when...
+    validations:
+      required: true
+  - type: textarea
+    id: solution
+    attributes:
+      label: What solution would you like?
+      description: >-
+        Describe the feature you would like to see implemented and explain how
+        it would address the problem you described above.
+    validations:
+      required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives you've considered
+      description: >-
+        Describe any alternative solutions or features you've considered. If you
+        know of any similar features requested before, please include links to
+        them.

.github/ISSUE_TEMPLATE/03-package-bug.yaml

@@ -0,0 +1,28 @@
+name: Package Issue
+description: Report a problem with an existing package on either Devbox or Nixhub
+labels:
+  - package
+  - bug
+  - triage
+body:
+  - type: input
+    id: name
+    attributes:
+      label: Package name
+      placeholder: [email protected], [email protected], etc.
+    validations:
+      required: true
+  - type: textarea
+    id: solution
+    attributes:
+      label: What changes are you requesting?
+      description: >-
+        Describe what's going wrong or what changes you'd like to see to the
+        package.
+    validations:
+      required: true
+  - type: input
+    id: link
+    attributes:
+      label: Nixhub link
+      placeholder: https://www.nixhub.io/packages/go

.github/ISSUE_TEMPLATE/04-package-request.yaml

@@ -0,0 +1,31 @@
+name: Package Request
+description: Request a new package to be added to Devbox and Nixhub
+labels:
+  - package
+  - triage
+body:
+  - type: input
+    id: name
+    attributes:
+      label: Package name
+      description: What name are you requesting for the new package?
+    validations:
+      required: true
+  - type: input
+    id: nixpkgs
+    attributes:
+      label: Nix package link
+      description: >-
+        Are you able to find the package on https://search.nixos.org/packages?
+        If so, please include a link to the search results. Otherwise, leave
+        blank.
+  - type: textarea
+    id: software
+    attributes:
+      label: Software
+      description: >-
+        Provide a description of the software that should be added to the new
+        package. Include any relevant links such as websites,
+        GitHub repositories, etc.
+    validations:
+      required: true