Centralizing repositories declaration (#153)

https://docs.gradle.org/current/userguide/declaring_repositories.html#sub:centralized-repository-declaration

Author: LordRaydenMK

app/build.gradle

@@ -1,7 +1,8 @@
-apply plugin: 'com.android.application'
-apply plugin: 'kotlin-android'
-apply plugin: 'kotlinx-serialization'
-
+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+    id 'org.jetbrains.kotlin.plugin.serialization'
+}
 android {
     compileSdkVersion 32
 

build.gradle

@@ -1,25 +1,8 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
-buildscript {
-    ext.kotlin_version = "1.6.21"
-    repositories {
-        google()
-        mavenCentral()
-    }
-    dependencies {
-        classpath 'com.android.tools.build:gradle:7.1.3'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath "org.jetbrains.kotlin:kotlin-serialization:$kotlin_version"
-
-        // NOTE: Do not place your application dependencies here; they belong
-        // in the individual module build.gradle files
-    }
-}
-
-allprojects {
-    repositories {
-        google()
-        mavenCentral()
-    }
+plugins {
+    id 'com.android.application' version '7.1.3' apply false
+    id 'org.jetbrains.kotlin.android' version '1.6.21' apply false
+    id 'org.jetbrains.kotlin.plugin.serialization' version '1.6.21' apply false
 }
 
 task clean(type: Delete) {

settings.gradle

@@ -1,2 +1,16 @@
+pluginManagement {
+    repositories {
+        gradlePluginPortal()
+        google()
+        mavenCentral()
+    }
+}
+dependencyResolutionManagement {
+    repositories {
+        repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+        google()
+        mavenCentral()
+    }
+}
 include ':app'
 rootProject.name = "Superheroes App"