Continue cleaning gradle files

plugins/src/main/java/io.element.android-compose-application.gradle.kts

@@ -0,0 +1,17 @@
+import extension.androidConfig
+import extension.composeConfig
+import extension.composeDependencies
+
+plugins {
+    id("com.android.application")
+    id("kotlin-android")
+}
+
+android {
+    androidConfig()
+    composeConfig()
+}
+
+dependencies {
+    composeDependencies()
+}