Disable ProGuard for desktop release and add application icon (#4776)

desktop/build.gradle.kts

@@ -43,12 +43,26 @@ compose.desktop {
     application {
         mainClass = "org.meshtastic.desktop.MainKt"
 
-        buildTypes.release.proguard { configurationFiles.from(project.file("proguard-rules.pro")) }
+        buildTypes.release.proguard {
+            isEnabled.set(false)
+            configurationFiles.from(project.file("proguard-rules.pro"))
+        }
 
         nativeDistributions {
             targetFormats(TargetFormat.Dmg, TargetFormat.Msi, TargetFormat.Deb)
             packageName = "Meshtastic"
 
+            // App Icon
+            macOS {
+                iconFile.set(project.file("src/main/resources/icon.png"))
+            }
+            windows {
+                iconFile.set(project.file("src/main/resources/icon.png"))
+            }
+            linux {
+                iconFile.set(project.file("src/main/resources/icon.png"))
+            }
+
             // Read version from project properties (passed by CI) or default to 0.1.0
             // Native installers require strict numeric semantic versions (X.Y.Z) without suffixes
             val rawVersion = project.findProperty("appVersionName")?.toString() ?: "0.1.0"

desktop/src/main/kotlin/org/meshtastic/desktop/Main.kt

@@ -23,6 +23,7 @@ import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.staticCompositionLocalOf
+import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.window.Window
 import androidx.compose.ui.window.application
@@ -85,6 +86,7 @@ fun main() = application {
     Window(
         onCloseRequest = ::exitApplication,
         title = "Meshtastic Desktop",
+        icon = painterResource("icon.png"),
         state = rememberWindowState(width = 1024.dp, height = 768.dp),
     ) {
         // Providing localePref via a staticCompositionLocalOf forces the entire subtree to