build.gradle(ktlint): Add ktlint

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

Author: AndyScherzinger

build.gradle

@@ -21,6 +21,7 @@ plugins {
     id "com.diffplug.spotless" version "7.0.2" apply false
     id 'io.gitlab.arturbosch.detekt' version '1.23.8' apply false
     id 'com.android.application' version '8.8.2' apply false
+    id "org.jlleitschuh.gradle.ktlint" version "12.2.0" apply false
 }
 
 tasks.register('clean', Delete) {
@@ -46,6 +47,7 @@ tasks.register('installGitHooks', Copy) {
 
 
 allprojects {
+    apply plugin: "org.jlleitschuh.gradle.ktlint"
     group = 'com.nextcloud.android-common'
 }