Actually apply the pre-commit fixers to the codebase.

This can be redone manually with
`pre-commit run --all`

While the pre-commit hook could be merged to run locally,
it is much cleaner to align all the files to best-practice
syntax in a single commit. It is also required for server-side
validation.

.github/workflows/test.yaml

@@ -4,21 +4,17 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      -
-        name: Install Go
+      - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: '1.18.x'
-      -
-        name: Install node
+          go-version: "1.18.x"
+      - name: Install node
         uses: actions/setup-node@v2
         with:
-          node-version: '17'
-      -
-        name: Checkout code
+          node-version: "17"
+      - name: Checkout code
         uses: actions/checkout@v2
-      -
-        name: Cache Go and npm modules
+      - name: Cache Go and npm modules
         uses: actions/cache@v3
         with:
           path: |
@@ -28,21 +24,15 @@ jobs:
             web/node_modules
           key: ${{ runner.os }}-ntfy-${{ hashFiles('**/go.sum', '**/package.lock') }}
           restore-keys: ${{ runner.os }}-ntfy-
-      -
-        name: Install dependencies
+      - name: Install dependencies
         run: make build-deps-ubuntu
-      -
-        name: Build docs (required for tests)
+      - name: Build docs (required for tests)
         run: make docs
-      -
-        name: Build web app (required for tests)
+      - name: Build web app (required for tests)
         run: make web
-      -
-        name: Run tests, formatting, vetting and linting
+      - name: Run tests, formatting, vetting and linting
         run: make check
-      -
-        name: Run coverage
+      - name: Run coverage
         run: make coverage
-      -
-        name: Upload coverage to codecov.io
+      - name: Upload coverage to codecov.io
         run: make coverage-upload