W-22185108: Support internal on DataWeave IntelliJ plugin

- Adding support for internal modifier
- Changed icons on auto completion for internal and private
- Fixed an issue in DW Preview content view

Author: gsfernandes

data-weave-plugin/build.gradle

@@ -34,6 +34,10 @@ intellij {
     updateSinceUntilBuild = false
 }
 
+tasks.named('runIde') {
+    jvmArgs '-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005'
+}
+
 task downloadAgentServerDependencies(type: Copy) {
     from configurations.agentServerLibs
     into "$projectDir/src/main/resources/agent-server-libs"