update configs for more minimalisting environment

.gitpod.yml

@@ -7,13 +7,12 @@ ports:
 
 vscode:
   extensions:
-    - eamodio.gitlens
-    - github.vscode-pull-request-github
+    - ms-azuretools.vscode-docker
     - redhat.java
     - richardwillis.vscode-gradle
     - vscjava.vscode-java-debug
+    - vscode.github
 
 
 tasks:
-  - init: ./gradlew
-    command: ./gradlew genSources
+  - init: ./gradlew