feat: Adds view snapshot tests

Package.swift

@@ -10,6 +10,7 @@ let package = Package(
     .library(name: "AuthClient", targets: ["AuthClient"]),
     .library(name: "DatabaseClient", targets: ["DatabaseClient"]),
     .library(name: "FileClient", targets: ["FileClient"]),
+    .library(name: "HTMLSnapshotTesting", targets: ["HTMLSnapshotTesting"]),
     .library(name: "PdfClient", targets: ["PdfClient"]),
     .library(name: "ProjectClient", targets: ["ProjectClient"]),
     .library(name: "ManualDCore", targets: ["ManualDCore"]),
@@ -23,6 +24,7 @@ let package = Package(
     .package(url: "https://github.com/vapor/fluent-sqlite-driver.git", from: "4.6.0"),
     .package(url: "https://github.com/apple/swift-nio.git", from: "2.65.0"),
     .package(url: "https://github.com/pointfreeco/swift-dependencies", from: "1.0.0"),
+    .package(url: "https://github.com/pointfreeco/swift-snapshot-testing", from: "1.12.0"),
     .package(url: "https://github.com/pointfreeco/swift-url-routing.git", from: "0.6.2"),
     .package(url: "https://github.com/pointfreeco/vapor-routing.git", from: "0.1.3"),
     .package(url: "https://github.com/pointfreeco/swift-case-paths.git", from: "1.6.0"),
@@ -84,6 +86,13 @@ let package = Package(
         .product(name: "DependenciesMacros", package: "swift-dependencies"),
       ]
     ),
+    .target(
+      name: "HTMLSnapshotTesting",
+      dependencies: [
+        .product(name: "Elementary", package: "elementary"),
+        .product(name: "SnapshotTesting", package: "swift-snapshot-testing"),
+      ]
+    ),
     .target(
       name: "PdfClient",
       dependencies: [
@@ -156,5 +165,15 @@ let package = Package(
         .product(name: "Vapor", package: "vapor"),
       ]
     ),
+    .testTarget(
+      name: "ViewControllerTests",
+      dependencies: [
+        .target(name: "ViewController"),
+        .target(name: "HTMLSnapshotTesting"),
+      ],
+      resources: [
+        .copy("__Snapshots__")
+      ]
+    ),
   ]
 )