Run formatting scripts during PR builds (#124)

### Motivation and Context

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brings in the renaming/consolidation changes from #60 and adds the
format scripts to run as part of PR builds.
hopefully one day we will have automated fixing of the formatting
errors, but for now they must be fixed by the developer manually.

### Description
- fixes all formatting errors.
- updates READMEs to use relative links where possible since absolute
links are not caught by `markdown-link-check`.
- github workflows: 
- adds `copilot-format-frontend` which runs `yarn format` to check if
formatting is correct.
- renames `node-pr` to `copilot-build-frontend` and removes the
`find-yarn-projects` job from the workflow.
- removes `copilot-chat-package` in favor of `copilot-build-backend`
since the two workflows seem identical.
also changes `copilot-build-backend` to run `dotnet format`, and also
run when PRs are created.
<!-- Describe your changes, the overall approach, the underlying design.
These notes will help understanding how your code works. Thanks! -->

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [x] The code builds clean without any errors or warnings
- [x] The PR follows the [Contribution
Guidelines](https://github.com/microsoft/copilot-chat/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/copilot-chat/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [x] All unit tests pass, and I have added new tests where possible
- [x] I didn't break anyone 😄

.github/workflows/copilot-build.yml → .github/workflows/copilot-build-backend.yml

@@ -1,17 +1,21 @@
-name: copilot-build
+name: copilot-build-backend
 
 on:
+  pull_request:
+    branches: ["main"]
+  merge_group:
+    branches: ["main"]
   workflow_call:
     outputs:
       artifact:
         description: "The name of the uploaded artifact."
-        value: ${{jobs.web-api.outputs.artifact}}
+        value: ${{jobs.webapi.outputs.artifact}}
 
 permissions:
   contents: read
 
 jobs:
-  web-api:
+  webapi:
     strategy:
       fail-fast: false
       matrix:
@@ -33,7 +37,12 @@ jobs:
 
       - name: Package Copilot Chat WebAPI
         run: |
-          deploy\package-webapi.ps1 -Configuration Release -DotnetFramework net6.0 -TargetRuntime win-x64 -OutputDirectory ${{ github.workspace }}\deploy
+          scripts\deploy\package-webapi.ps1 -Configuration Release -DotnetFramework net6.0 -TargetRuntime win-x64 -OutputDirectory ${{ github.workspace }}\scripts\deploy
+
+      - name: Check formatting of Copilot Chat WebAPI
+        run: |
+          cd webapi/
+          dotnet format --verify-no-changes --verbosity diagnostic
 
       - name: Set version tag
         id: versiontag
@@ -46,7 +55,7 @@ jobs:
         uses: actions/upload-artifact@v3
         with:
           name: copilotchat-webapi-${{ steps.versiontag.outputs.versiontag }}
-          path: ${{ github.workspace }}\deploy\out\webapi.zip
+          path: ${{ github.workspace }}\scripts\deploy\out\webapi.zip
 
       - name: "Set outputs"
         id: artifactoutput

.github/workflows/copilot-build-frontend.yml

@@ -0,0 +1,33 @@
+name: copilot-build-frontend
+
+on:
+  workflow_dispatch:
+  pull_request:
+    branches: ["main"]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  webapp:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js 18
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: "yarn"
+          cache-dependency-path: "webapp/yarn.lock"
+
+      - name: Run yarn install, yarn build, & yarn format
+        run: |
+          #!/bin/bash
+          set -e # exit with nonzero exit code if anything fails
+          echo "Running yarn install, yarn build, & yarn format"
+          yarn install --frozen-lockfile # install dependencies and ensure lockfile is unchanged.
+          yarn build # run build script
+          yarn format # run format script
+        working-directory: webapp

.github/workflows/copilot-deploy-backend.yml

@@ -24,7 +24,7 @@ permissions:
   contents: read
 
 jobs:
-  web-api:
+  webapi:
     environment: ${{inputs.ENVIRONMENT}}
     permissions:
       id-token: write

.github/workflows/copilot-deploy-frontend.yml

@@ -1,4 +1,4 @@
-name: copilot-deploy-backend
+name: copilot-deploy-frontend
 
 on:
   workflow_call:
@@ -23,7 +23,7 @@ permissions:
   contents: read
 
 jobs:
-  web-app:
+  webapp:
     environment: ${{inputs.ENVIRONMENT}}
     permissions:
       id-token: write

.github/workflows/copilot-deploy-pipeline.yml

@@ -15,7 +15,7 @@ permissions:
 
 jobs:
   build:
-    uses: ./.github/workflows/copilot-build.yml
+    uses: ./.github/workflows/copilot-build-backend.yml
 
   int:
     needs: build

.github/workflows/copilot-chat-tests.yml → .github/workflows/copilot-test-e2e.yml

@@ -8,7 +8,7 @@ permissions:
   contents: read
 
 jobs:
-  test:
+  e2e:
     defaults:
       run:
         working-directory: webapp