arrow-fx-android: move Gradle configuration to the module

arrow-fx-android/build.gradle

@@ -1,8 +1,15 @@
+buildscript {
+    repositories {
+        google()
+    }
+    dependencies {
+        classpath("com.android.tools.build:gradle:3.6.0")
+    }
+}
+
 plugins {
     id "maven-publish"
     id "base"
-    id "com.android.library"
-    id "org.jetbrains.kotlin.android"
     id "net.rdrei.android.buildtimetracker"
     id "org.jetbrains.dokka"
     id "org.jlleitschuh.gradle.ktlint"
@@ -18,6 +25,8 @@ repositories {
 apply from: "$DOC_CONF"
 //apply from: "$PUBLISH_CONF"
 
+apply plugin: 'com.android.application'
+
 android {
     compileSdkVersion 29
 

build.gradle

@@ -5,11 +5,9 @@ buildscript {
         maven {
             url "https://plugins.gradle.org/m2/"
         }
-        google()
     }
     dependencies {
         classpath "org.jetbrains.kotlinx:atomicfu-gradle-plugin:$ATOMICFU_VERSION"
-        classpath("com.android.tools.build:gradle:3.6.0")
     }
 }