Setup Dokka & remove javadoc workflow

Sets up dokka to publish a javadoc jar, which can be viewed in reposilite.
Removes the javadoc github workflow, as javadoc can be viewed through reposilite.

Author: NichtStudioCode

.github/workflows/javadoc.yml

@@ -18,4 +18,5 @@ paperweight-userdev-plugin = { module = "io.papermc.paperweight:paperweight-user
 test-paper-api = { module = "io.papermc.paper:paper-api", version.ref = "testpaper" }
 
 [plugins]
-kotlin = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
+kotlin = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
+dokka = { id = "org.jetbrains.dokka", version = "2.1.0" }

gradle/libs.versions.toml

@@ -1,6 +1,7 @@
 plugins {
     id("invui.common-conventions")
     alias(libs.plugins.kotlin)
+    alias(libs.plugins.dokka)
 }
 
 repositories {
@@ -29,10 +30,17 @@ kotlin {
     }
 }
 
+val dokkaGenerateHtmlIntoJavadoc by tasks.registering(Jar::class) {
+    group = "dokka"
+    archiveClassifier = "javadoc"
+    from(tasks.dokkaGeneratePublicationHtml.flatMap { it.outputDirectory })
+}
+
 publishing {
     publications {
         create<MavenPublication>("maven") {
             from(components["kotlin"])
+            artifact(dokkaGenerateHtmlIntoJavadoc)
         }
     }
 }