Merge branch 'main' into glitch-soc/merge-upstream

Conflicts:
- `README.md`:
  Upstream updated its README, while we have a completely different one.
  Kept our README.
- `app/controllers/concerns/web_app_controller_concern.rb`:
  Conflict because of glitch-soc's theming system.
  Additionally, glitch-soc has different behavior regarding moved accounts.
  Ported some of the changes, but kept our overall behavior.
- `app/javascript/packs/admin.js`:
  Code changes actually applied to `app/javascript/core/admin.js`

.github/workflows/lint-json.yml

@@ -0,0 +1,38 @@
+name: JSON Linting
+on:
+  push:
+    branches-ignore:
+      - 'dependabot/**'
+    paths:
+      - 'package.json'
+      - 'yarn.lock'
+      - '.prettier*'
+      - '**/*.json'
+      - '.github/workflows/lint-json.yml'
+
+  pull_request:
+    paths:
+      - 'package.json'
+      - 'yarn.lock'
+      - '.prettier*'
+      - '**/*.json'
+      - '.github/workflows/lint-json.yml'
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          cache: yarn
+
+      - name: Install all yarn packages
+        run: yarn --frozen-lockfile
+
+      - name: Prettier
+        run: yarn prettier --check "**/*.json"

.github/workflows/lint-yml.yml

@@ -0,0 +1,40 @@
+name: YML Linting
+on:
+  push:
+    branches-ignore:
+      - 'dependabot/**'
+    paths:
+      - 'package.json'
+      - 'yarn.lock'
+      - '.prettier*'
+      - '**/*.yaml'
+      - '**/*.yml'
+      - '.github/workflows/lint-yml.yml'
+
+  pull_request:
+    paths:
+      - 'package.json'
+      - 'yarn.lock'
+      - '.prettier*'
+      - '**/*.yaml'
+      - '**/*.yml'
+      - '.github/workflows/lint-yml.yml'
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Clone repository
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          cache: yarn
+
+      - name: Install all yarn packages
+        run: yarn --frozen-lockfile
+
+      - name: Prettier
+        run: yarn prettier --check "**/*.{yml,yaml}"

.github/workflows/linter.yml

@@ -57,8 +57,6 @@ jobs:
           cache: yarn
       - name: Install dependencies
         run: yarn install --frozen-lockfile
-      - name: Check prettier formatting
-        run: yarn format-check
       - name: Set-up RuboCop Problem Mathcher
         uses: r7kamura/rubocop-problem-matchers-action@v1
       - name: Set-up Stylelint Problem Matcher