Updated dependencies and some changes to Gradle to decrease build time.

getDate used to run for every Build which resulted in different versionCode for every which is present in manifest, so heavy tasks used to run everytime so more build time. getDate is used for only release builds now.

settings.gradle

@@ -1 +1,9 @@
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+        maven { url "https://jitpack.io" }
+    }
+}
 include ':app', ':appthemehelper'