Add Splash and Highlightr for syntax highlighting

Splash is good at Swift, but it's not providing builtin support for other languages. Highlightr uses highlight.js, which is terrible in highlighting Swift. Hope someone can make a wrapper for prism.js.

Author: intitni

Copilot for Xcode.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -25,6 +25,8 @@ let package = Package(
     dependencies: [
         .package(url: "https://github.com/ChimeHQ/LanguageClient", from: "0.3.1"),
         .package(url: "https://github.com/apple/swift-async-algorithms", from: "0.1.0"),
+        .package(url: "https://github.com/raspu/Highlightr", from: "2.1.0"),
+        .package(url: "https://github.com/JohnSundell/Splash", from: "0.1.0"),
     ],
     targets: [
         .target(name: "CGEventObserver"),
@@ -102,6 +104,8 @@ let package = Package(
                 "ActiveApplicationMonitor",
                 "AXNotificationStream",
                 "Environment",
+                "Highlightr",
+                "Splash",
             ]
         ),
         .target(name: "UpdateChecker"),