Configure javadoc overview and doc-files copying

closes #7462

Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>

patches/api/0002-Build-system-changes.patch

@@ -5,7 +5,7 @@ Subject: [PATCH] Build system changes
 
 
 diff --git a/build.gradle.kts b/build.gradle.kts
-index bf1f5a8151ac0a4b25370142fef37145033140ef..709f9c3a562729970813f47b531bfc51ba192f55 100644
+index d6b99d37c960a7d8de1852dbc74c3ce671101b14..e49f4853e36f493754841231eeb5dd093b3788e0 100644
 --- a/build.gradle.kts
 +++ b/build.gradle.kts
 @@ -15,15 +15,27 @@ dependencies {
@@ -37,12 +37,12 @@ index bf1f5a8151ac0a4b25370142fef37145033140ef..709f9c3a562729970813f47b531bfc51
      testImplementation("junit:junit:4.13.2")
      testImplementation("org.hamcrest:hamcrest-library:1.3")
      testImplementation("org.ow2.asm:asm-tree:9.2")
-@@ -60,7 +72,7 @@ tasks.withType<Javadoc> {
-     (options as StandardJavadocDocletOptions).links(
+@@ -63,7 +75,7 @@ tasks.withType<Javadoc> {
+     options.links(
          "https://guava.dev/releases/31.0.1-jre/api/docs/",
          "https://javadoc.io/doc/org.yaml/snakeyaml/1.30/",
 -        "https://javadoc.io/doc/org.jetbrains/annotations-java5/23.0.0/",
 +        "https://javadoc.io/doc/org.jetbrains/annotations/23.0.0/", // Paper - we don't want Java 5 annotations
          "https://javadoc.io/doc/net.md-5/bungeecord-chat/1.16-R0.4/",
      )
- }
+