[client] UI refactor (#6069)

Refactor UI

---------

Co-authored-by: Eduard Gert <kontakt@eduardgert.de>
Co-authored-by: braginini <bangvalo@gmail.com>
Co-authored-by: Pascal Fischer <32096965+pascal-fischer@users.noreply.github.com>
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: riccardom <riccardomanfrin@gmail.com>

client/ui/build/appicon.icon/icon.json

@@ -0,0 +1,26 @@
+{
+  "fill" : {
+    "solid" : "srgb:1.00000,1.00000,1.00000,1.00000"
+  },
+  "groups" : [
+    {
+      "layers" : [
+        {
+          "image-name" : "wails_icon_vector.svg",
+          "name" : "wails_icon_vector"
+        }
+      ],
+      "shadow" : {
+        "kind" : "neutral",
+        "opacity" : 0.5
+      },
+      "specular" : true
+    }
+  ],
+  "supported-platforms" : {
+    "circles" : [
+      "watchOS"
+    ],
+    "squares" : "shared"
+  }
+}