feat(templates): add issue templates for bug reports, feature requests, and custom issues

feat(funding): create FUNDING.yml for supporting funding model platforms
build(tests): set up GitHub Actions workflow for testing and linting

Author: jkyberneees

.github/FUNDING.yml

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+# These are supported funding model platforms
+
+custom: https://www.paypal.me/kyberneees

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**  
+A clear and concise description of what the bug is.
+
+**To Reproduce**  
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**  
+A clear and concise description of what you expected to happen.
+
+**Screenshots**  
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**  
+ - OS: [e.g. iOS]
+ - Browser [e.g. chrome, safari]
+ - Version [e.g. 22]
+
+**Smartphone (please complete the following information):**  
+ - Device: [e.g. iPhone6]
+ - OS: [e.g. iOS8.1]
+ - Browser [e.g. stock browser, safari]
+ - Version [e.g. 22]
+
+**Additional context**  
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/custom.md

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+---
+name: Custom issue template
+about: Describe this issue template's purpose here.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+---
+
+**Have you contributed with at least a little donation to support the development of this project?**
+
+- Paypal: https://www.paypal.me/kyberneees
+
+**Is your feature request related to a problem? Please describe.**  
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**  
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**  
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**  
+Add any other context or screenshots about the feature request here.

.github/workflows/tests.yaml

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+name: tests
+on: [push, pull_request]
+
+jobs:
+  testing:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: latest
+
+      - name: Install dependencies
+        run: bun install
+
+      - name: Linting
+        run: bun run format
+
+      - name: Run tests
+        run: bun run test