[client/ui] Replace fyne UI with Wails (rename ui-wails to ui)

Removes the legacy fyne-based client/ui implementation and renames the
Wails replacement (client/ui-wails) to take its place at client/ui. Go
imports, frontend bindings, CI workflows, goreleaser configs and the
windows .syso icon path are updated to follow the rename.

client/ui/build/darwin/Info.dev.plist

@@ -0,0 +1,36 @@
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+    <dict>
+        <key>CFBundlePackageType</key>
+            <string>APPL</string>
+        <key>CFBundleName</key>
+            <string>NetBird</string>
+        <key>CFBundleExecutable</key>
+            <string>netbird-ui</string>
+        <key>CFBundleIdentifier</key>
+            <string>io.netbird.client</string>
+        <key>CFBundleVersion</key>
+            <string>0.0.1</string>
+        <key>CFBundleGetInfoString</key>
+            <string>This is a comment</string>
+        <key>CFBundleShortVersionString</key>
+            <string>0.0.1</string>
+        <key>CFBundleIconFile</key>
+            <string>icons</string>
+        <key>CFBundleIconName</key>
+            <string>appicon</string>
+        <key>LSMinimumSystemVersion</key>
+            <string>10.15.0</string>
+        <key>NSHighResolutionCapable</key>
+            <string>true</string>
+        <key>LSUIElement</key>
+            <string>1</string>
+        <key>NSHumanReadableCopyright</key>
+            <string>© 2026, My Company</string>
+        <key>NSAppTransportSecurity</key>
+        <dict>
+            <key>NSAllowsLocalNetworking</key>
+            <true/>
+        </dict>
+    </dict>
+</plist>