feat: add native macOS menu-bar application shell (#1)

TraccarClient/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,68 @@
+{
+  "images": [
+    {
+      "filename": "icon_16x16.png",
+      "idiom": "mac",
+      "size": "16x16",
+      "scale": "1x"
+    },
+    {
+      "filename": "icon_16x16@2x.png",
+      "idiom": "mac",
+      "size": "16x16",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon_32x32.png",
+      "idiom": "mac",
+      "size": "32x32",
+      "scale": "1x"
+    },
+    {
+      "filename": "icon_32x32@2x.png",
+      "idiom": "mac",
+      "size": "32x32",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon_128x128.png",
+      "idiom": "mac",
+      "size": "128x128",
+      "scale": "1x"
+    },
+    {
+      "filename": "icon_128x128@2x.png",
+      "idiom": "mac",
+      "size": "128x128",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon_256x256.png",
+      "idiom": "mac",
+      "size": "256x256",
+      "scale": "1x"
+    },
+    {
+      "filename": "icon_256x256@2x.png",
+      "idiom": "mac",
+      "size": "256x256",
+      "scale": "2x"
+    },
+    {
+      "filename": "icon_512x512.png",
+      "idiom": "mac",
+      "size": "512x512",
+      "scale": "1x"
+    },
+    {
+      "filename": "icon_512x512@2x.png",
+      "idiom": "mac",
+      "size": "512x512",
+      "scale": "2x"
+    }
+  ],
+  "info": {
+    "author": "xcode",
+    "version": 1
+  }
+}

TraccarClient/Resources/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info": {
+    "author": "xcode",
+    "version": 1
+  }
+}

TraccarClient/Resources/Assets.xcassets/MenuBarIcon.imageset/Contents.json

@@ -0,0 +1,21 @@
+{
+  "images": [
+    {
+      "filename": "menu.png",
+      "idiom": "mac",
+      "scale": "1x"
+    },
+    {
+      "filename": "menu@2x.png",
+      "idiom": "mac",
+      "scale": "2x"
+    }
+  ],
+  "info": {
+    "author": "xcode",
+    "version": 1
+  },
+  "properties": {
+    "template-rendering-intent": "template"
+  }
+}