Ladybird/AppKit: Port TaskManager window to Swift

This is just a direct port of the Objective-C++ code to Swift 6.
A future patch should probably update it to actually use SwiftUI.

.github/actions/setup/action.yml

@@ -50,7 +50,7 @@ runs:
       shell: bash
       run: |
         set -e
-        sudo xcode-select --switch /Applications/Xcode_15.4.app
+        sudo xcode-select --switch /Applications/Xcode_16.0.app
         brew update
         brew install autoconf autoconf-archive automake coreutils bash ffmpeg ninja wabt ccache unzip qt llvm@18 nasm
 

.github/workflows/lagom-template.yml

@@ -138,6 +138,16 @@ jobs:
         working-directory: ${{ github.workspace }}/Build
         run: cmake --build .
 
+      - name: Enable the AppKit chrome with Swift files
+        if: ${{ inputs.os_name == 'macOS' && inputs.fuzzer == 'NO_FUZZ' }}
+        working-directory: ${{ github.workspace }}
+        run: cmake -B Build -DENABLE_QT=OFF -DENABLE_SWIFT=ON
+
+      - name: Build the AppKit chrome with Swift files
+        if: ${{ inputs.os_name == 'macOS' && inputs.fuzzer == 'NO_FUZZ' }}
+        working-directory: ${{ github.workspace }}/Build
+        run: cmake --build .
+
       - name: Save Caches
         uses: ./.github/actions/cache-save
         with: