Refactor some modules + add dependency management (still WIP)

plugins/build.gradle.kts

@@ -0,0 +1,14 @@
+plugins {
+    `kotlin-dsl`
+    `kotlin-dsl-precompiled-script-plugins`
+}
+
+repositories {
+    mavenCentral()
+    google()
+}
+
+dependencies {
+    implementation(libs.android.gradle.plugin)
+    implementation(libs.kotlin.gradle.plugin)
+}