Migrate from SwiftLint to Swift-Format & fix all

.github/workflows/pull_request.yml

@@ -14,21 +14,6 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-  swift-format:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Install Mint
-        run: git clone https://github.com/yonaskolb/Mint.git && cd Mint && make
-
-      - name: Install Swift-Format
-        run: mint install apple/swift-format
-
-      - name: Run Swift-Format
-        run: "! swift-format lint --recursive App/Sources Tests/Sources UITests/Sources 2>&1 | grep -q warning"
-
   tests:
     runs-on: macOS-latest
 

.swift-format

@@ -0,0 +1,15 @@
+{
+  "lineBreakAroundMultilineExpressionChainComponents": true,
+  "lineBreakBeforeControlFlowKeywords": true,
+  "lineBreakBeforeEachArgument": true,
+  "lineBreakBeforeEachGenericRequirement": true,
+  "lineLength": 120,
+  "prioritizeKeepingFunctionOutputTogether": true,
+  "rules": {
+    "NeverUseImplicitlyUnwrappedOptionals": false,
+    "NoLeadingUnderscores": true,
+    "ValidateDocumentationComments": false,
+  },
+  "tabWidth": 2,
+  "version": 1,
+}