chore: add templates for repository

.github/CONTRIBUTING.md

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+# Contributing to Cobalt2 Theme
+
+### Make changes to the Cobalt2 theme or docs
+
+To work on the theme:
+
+1. Clone this repo and open in VS Code
+2. Open run `View → Run`
+3. Click `Launch Extension`. This will open up another VS Code Editor
+4. Make changes to `cobalt2.json`. You will see changes reflected in the other editor that opened in step 3.
+
+If you are making a Pull Request, Please give me a screenshot of before/after!
+
+### Submit bug reports or feature requests
+
+For bug reports or feature requests, please utilize the GitHub issue tracker.<br>
+If you are submitting a bug report, please follow the [issue template](https://github.com/wesbos/cobalt2-vscode/issues/new).

.github/ISSUE_TEMPLATE.md

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+## Description
+
+Provide a detailed and clear description of the issue you are encountering, including any relevant context or background information.
+
+## Expected Behavior
+
+Explain the expected behavior or outcome when the issue is resolved. This should include a clear understanding of what success looks like for this particular problem.
+
+## Screenshots
+
+If applicable, include screenshots to help illustrate the issue. Ensure that any screenshots provided are clear, relevant, and properly annotated to highlight the problem.
+
+## Additional Information
+
+Include any additional information that may be relevant to understanding or resolving the issue.

.github/PULL_REQUEST_TEMPLATE.md

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+## Proposed changes
+
+Provide a detailed description of the changes included in this pull request. Explain the purpose and impact of the changes, including any relevant context or background information.
+
+If the pull request addresses a specific issue or feature request, be sure to reference it here by linking to the relevant issue.
+
+Fixes # (issue)
+
+## Screenshots
+
+Include screenshots to demonstrate the changes made by this pull request. This include before-and-after comparisons or specific examples of the modified functionality.
+
+### Before
+<!-- Include before screenshot here -->
+
+### After
+<!-- Include after screenshot here -->
+
+## Checklist
+
+Before submitting this pull request, ensure that you have completed the following tasks:<br>
+(_Put an `x` in the boxes that apply._)
+
+- [ ] I have read and understood the [CONTRIBUTING](https://github.com/wesbos/cobalt2-vscode/blob/master/.github/CONTRIBUTING.md) guidelines.
+- [ ] I have performed a self-review of my code.
+- [ ] I have added relevant screenshots or visual aids to showcase the changes made by this pull request.

.github/labeler.yml

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+version: v1
+
+labels:
+  - label: "Enhancement"
+    sync: true
+    matcher:
+      commits: "^feat.*?:"
+      title: "^feat.*?:"
+
+  - label: "Bug"
+    sync: true
+    matcher:
+      commits: "^fix.*?:"
+      title: "^fix.*?:"
+
+  - label: "Documentation"
+    sync: true
+    matcher:
+      commits: "^docs.*?:"
+      title: "^docs.*?:"
+      files: ["demo/**", "**/*.md"]
+
+  - label: "Chore"
+    sync: true
+    matcher:
+      commits: "^chore.*?:"
+      title: "^chore.*?:"
+      files: [".github/**", ".vscode/**", "./.*", "./*.js"]