feat: add custom mole icon and update PasswordSheetView to display it.

app/Mole/Sources/Mole/PasswordSheetView.swift

@@ -42,12 +42,23 @@ struct PasswordSheetView: View {
     VStack(alignment: .leading, spacing: 14) {
       // Icon
       ZStack(alignment: .bottomTrailing) {
-        Image(nsImage: NSApp.applicationIconImage)
-          .resizable()
-          .interpolation(.high)
-          .aspectRatio(contentMode: .fit)
-          .frame(width: 48, height: 48)
-          .shadow(radius: 2)
+        if let url = Bundle.module.url(forResource: "mole", withExtension: "png"),
+          let customIcon = NSImage(contentsOf: url)
+        {
+          Image(nsImage: customIcon)
+            .resizable()
+            .interpolation(.high)
+            .aspectRatio(contentMode: .fit)
+            .frame(width: 48, height: 48)
+            .shadow(radius: 2)
+        } else {
+          Image(nsImage: NSApp.applicationIconImage)
+            .resizable()
+            .interpolation(.high)
+            .aspectRatio(contentMode: .fit)
+            .frame(width: 48, height: 48)
+            .shadow(radius: 2)
+        }
       }
       .padding(.leading, 6)
 

app/Mole/Sources/Mole/Resources/mole.icon/icon.json

@@ -0,0 +1,38 @@
+{
+  "fill" : {
+    "solid" : "display-p3:0.97607,0.94922,0.90625,1.00000"
+  },
+  "groups" : [
+    {
+      "layers" : [
+        {
+          "blend-mode" : "normal",
+          "glass" : false,
+          "image-name" : "mole.png",
+          "name" : "mole",
+          "position" : {
+            "scale" : 1.76,
+            "translation-in-points" : [
+              0,
+              0
+            ]
+          }
+        }
+      ],
+      "shadow" : {
+        "kind" : "neutral",
+        "opacity" : 0.5
+      },
+      "translucency" : {
+        "enabled" : true,
+        "value" : 0.5
+      }
+    }
+  ],
+  "supported-platforms" : {
+    "circles" : [
+      "watchOS"
+    ],
+    "squares" : "shared"
+  }
+}