Improve packaging of published jars

- Publish javadoc again: for now this is just the common-api

 - Remove all dependencies from the published Forge jar. This is
   technically not needed (fg.deobf does this anyway), but seems
   sensible.

projects/core-api/build.gradle.kts

@@ -20,7 +20,7 @@ dependencies {
     compileOnlyApi(libs.checkerFramework)
     compileOnlyApi(libs.jetbrainsAnnotations)
 
-    "docApi"(project(":"))
+    "docApi"(project(":common-api"))
 }
 
 tasks.javadoc {