Refactor some modules + add dependency management (still WIP)

plugins/src/main/java/Versions.kt

@@ -0,0 +1,17 @@
+import org.gradle.api.JavaVersion
+import org.gradle.api.artifacts.VersionCatalog
+import org.gradle.jvm.toolchain.JavaLanguageVersion
+
+val VersionCatalog.composeVersion: String
+    get() = findVersion("compose_compiler").get().requiredVersion
+
+object Versions {
+    const val versionCode = 100100
+    const val versionName = "0.1.0"
+
+    const val compileSdk = 33
+    const val targetSdk = 33
+    const val minSdk = 24
+    val javaCompileVersion = JavaVersion.VERSION_11
+    val javaLanguageVersion: JavaLanguageVersion = JavaLanguageVersion.of(11)
+}