Chore: Add CONTRIBUTING.md guidelines and standardized templates (#279)

* chore: Improve GitHub workflows, issue template, and gitignore entries

- Add support for manual triggering of build and lint workflows.
- Improve bug report template by clarifying prompts and adding checklist and tips for better explanation of issues.
- Ignore `.md` files in `.github` and `.github/ISSUE_TEMPLATE` folders.
- Add badges for test running and coverage status in README.md.

* chore: Add standardized templates to repository

- Add pull request and feature request templates to the `.github` folder

* docs: Add CONTRIBUTING.md guidelines and update .gitignore.

- Update .gitignore to remove exclusions for browsing history files
- Add an exclusion for CONTRIBUTING.md in the Community section in .gitignore
- Create CONTRIBUTING.md with guidelines for contributors.

.gitignore

@@ -196,4 +196,9 @@ hack-browser-data
 !/browsingdata/history/history_test.go
 
 # github action
-!/.github/workflows/unittest.yml
+!/.github/workflows/unittest.yml
+!/.github/ISSUE_TEMPLATE/*.md
+!/.github/*.md
+
+# Community
+!CONTRIBUTING.md