Run CI in Github Actions (#22054)

* Tidy workflows

* Update get-version-from-git.sh

* Run tests in Actions

* Upload coverage to SonarCloud

* Run linters in Actions

* Run builds in Actions, consolidating with sentry uploader

* Update sonar-project.properties

* chmod +x

* Iterate

* Use new env vars

* Delete yarn-sub.js

* Use re-usable sonarqube action

* Add README badges

* Match reality

.github/workflows/static_analysis.yaml

@@ -0,0 +1,94 @@
+name: Static Analysis
+on:
+  pull_request: { }
+  push:
+    branches: [ develop, master ]
+  repository_dispatch:
+    types: [ element-web-notify ]
+env:
+  # These must be set for fetchdep.sh to get the right branch
+  REPOSITORY: ${{ github.repository }}
+  PR_NUMBER: ${{ github.event.pull_request.number }}
+jobs:
+  ts_lint:
+    name: "Typescript Syntax Check"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-node@v3
+        with:
+          cache: 'yarn'
+
+      - name: Install Dependencies
+        run: "./scripts/layered.sh"
+
+      - name: Typecheck
+        run: "yarn run lint:types"
+
+  i18n_lint:
+    name: "i18n Check"
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: read
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: "Get modified files"
+        id: changed_files
+        if: github.event_name == 'pull_request'
+        uses: tj-actions/changed-files@v19
+        with:
+          files: |
+            src/i18n/strings/*
+          files_ignore: |
+            src/i18n/strings/en_EN.json
+      - name: "Assert only en_EN was modified"
+        if: github.event_name == 'pull_request' && steps.changed_files.outputs.any_modified == 'true'
+        run: |
+          echo "You can only modify en_EN.json, do not touch any of the other i18n files as Weblate will be confused"
+          exit 1
+      - uses: actions/setup-node@v3
+        with:
+          cache: 'yarn'
+
+      # Does not need branch matching as only analyses this layer
+      - name: Install Deps
+        run: "yarn install --pure-lockfile"
+
+      - name: i18n Check
+        run: "yarn run diff-i18n"
+
+  js_lint:
+    name: "ESLint"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-node@v3
+        with:
+          cache: 'yarn'
+
+      # Does not need branch matching as only analyses this layer
+      - name: Install Deps
+        run: "yarn install --pure-lockfile"
+
+      - name: Run Linter
+        run: "yarn run lint:js"
+
+  style_lint:
+    name: "Style Lint"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions/setup-node@v3
+        with:
+          cache: 'yarn'
+
+      # Does not need branch matching as only analyses this layer
+      - name: Install Deps
+        run: "yarn install --pure-lockfile"
+
+      - name: Run Linter
+        run: "yarn run lint:style"