fix(templates): add 'gradlePluginPortal()' to settings.gradle[.kts] (#1267)

templates-api/src/main/java/com/itsaky/androidide/templates/base/root/settings.kt

@@ -23,6 +23,7 @@ internal fun ProjectTemplateBuilder.settingsGradleSrcStr(): String {
   return """
 pluginManagement {
   repositories {
+    gradlePluginPortal()
     google()
     mavenCentral()
   }