Add some configs to improve copilot functionailty

.github/copilot-instructions.md

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+This is a repository consisting of a Go backend and a React frontend. It supports both an internal web application that is public facing, an internal admin web application, internal-only APIs for powering these web interfaces, and a set of APIs for third parties to take advantage of.
+
+## Code Standards
+
+- UI component standards can be found in https://docs.owncast.dev/develop-frontend-components
+
+### Required Before Each Commit
+
+- Ensure all code is formatted using `golangci-lint` for Go, `stylelint` for CSS, and `prettier` for JavaScript/React.
+- Fix any formatting or linting errors.
+
+### Development Flow
+
+- Build: Ensure the code builds successfully using `go build` for Go and `npm run build` for React in the `web` directory.
+- Tests: Write unit tests for Go code and Javascript logic. Use `go test` and `npm run test`.
+- UI components: Components should be standalone and reusable and show up in Storybook to enable testing, prototyping, and iteration.
+- API: All APIs should be documented using OpenAPI specifications. Use `build/gen-api.sh` to generate the stubs, and then fill them in with your actual API implementation.
+- If you made new UI components or made changes ensure that Storybook still builds by running `npm run build-storybook`.
+
+## Repository Structure
+
+- `web`: The web source code for the React frontend.
+- Root of the repo: Go source code for the backend.
+- `static/web`: Generated static files for the web application. Do not edit or commit files in this directory directly; they are generated from the `web` directory. Ignore this.
+- `test/automated/api`: A series of automated integration tests for API endpoints written in Javascript.
+- `test/automated/browser`: A series of automated browser UI tests for actual real-world browser interaction.
+- `build/web`: Script to build and bundle the web application.
+
+## Key Guidelines
+
+1. All APIs are to be documented using OpenAPI specifications and code is to be generated using `build/gen-api.sh`. Additional details can be found at https://docs.owncast.dev/api-web-routing.
+2. Write API tests for all new endpoints in the `test/automated/api` directory.
+3. Use the `test/automated/browser` directory for browser-based tests for new functionality that simulate user interactions.
+4. All user-facing frontend UI strings need to support localization. Use the `next-export-i18n` package for wrapping strings to enable this. Read https://docs.owncast.dev/web-translations for more details.

.github/workflows/copilot-setup-steps.yml

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+name: 'Copilot Setup Steps'
+
+# Automatically run the setup steps when they are changed to allow for easy validation, and
+# allow manual testing through the repository's "Actions" tab
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+  pull_request:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+
+jobs:
+  # The job MUST be called `copilot-setup-steps` or it will not be picked up by Copilot.
+  copilot-setup-steps:
+    runs-on: ubuntu-latest
+
+    # Set the permissions to the lowest permissions possible needed for your steps.
+    # Copilot will be given its own token for its operations.
+    permissions:
+      # If you want to clone the repository as part of your setup steps, for example to install dependencies, you'll need the `contents: read` permission. If you don't clone the repository in your setup steps, Copilot will do this for you automatically after the steps complete.
+      contents: read
+
+    # You can define any steps you want, and they will run before the agent starts.
+    # If you do not check out your code, Copilot will do this for you.
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '^1'
+          cache: true
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+      - name: Install JavaScript dependencies
+        run: npm ci
+        working-directory: web