Add the spotless gradle plugin to use the diktat formatter

Formatting.yml

@@ -0,0 +1,35 @@
+- name: HEADER_MISSING_OR_WRONG_COPYRIGHT
+  enabled: false
+
+- name: COMMENTED_OUT_CODE
+  enabled: true
+
+- name: SAY_NO_TO_VAR
+  enabled: true
+
+- name: UNUSED_IMPORT
+  enabled: true
+
+- name: CUSTOM_GETTERS_SETTERS
+  enabled: false
+
+- name: WRONG_INDENTATION
+  enabled: true
+
+- name: TYPEALIAS_NAME_INCORRECT_CASE
+  enabled: false
+
+- name: FUNCTION_NAME_INCORRECT_CASE
+  enabled: false
+
+- name: CONSTANT_UPPERCASE
+  enabled: false
+
+- name: MISSING_KDOC_TOP_LEVEL
+  enabled: false
+
+- name: MISSING_KDOC_CLASS_ELEMENTS
+  enabled: false
+
+- name: MISSING_KDOC_ON_FUNCTION
+  enabled: false

build.gradle.kts

@@ -17,6 +17,7 @@ plugins {
     id("dev.architectury.loom") version "0.7.2.110" apply false
     id("com.github.ben-manes.versions") version "0.39.0"
     id("net.kyori.indra.git") version "2.0.5"
+    id("com.diffplug.spotless") version "5.12.5"
     id("com.modrinth.minotaur") version "1.2.1"
 }
 
@@ -161,6 +162,16 @@ allprojects {
     **/
     apply(plugin = "java")
     apply(plugin = "org.jetbrains.kotlin.jvm")
+    apply(plugin = "com.diffplug.spotless")
+    spotless {
+        encoding = Charsets.UTF_8
+        kotlin {
+            ignoreErrorForStep("diktat")
+            diktat("0.6.1").configFile("$rootDir/Formatting.yml")
+            trimTrailingWhitespace(); endWithNewline()
+        }
+    }
+    tasks.spotlessCheck.get().finalizedBy(tasks.spotlessApply)
     apply(plugin = "architectury-plugin")
     val compiler = javaToolchains.compilerFor { languageVersion.set(JavaLanguageVersion.of(sourceJavaVer.toInt())) }
     dependencies {

common/src/main/kotlin/fr/username404/snowygui/gui/feature/Macro.kt

@@ -4,6 +4,10 @@ import fr.username404.snowygui.gui.feature.ButtonInfo.Companion.Type
 import kotlinx.serialization.Serializable
 import net.minecraft.client.Minecraft
 
+/**
+ * @property command The command to execute
+ * @property title The title of the macro
+ */
 @Serializable
 @ButtonInfo.Ignored
 @ButtonInfo(Category.MACROS, kind = Type.CLICK)