dev: use bundled backend in launch configurations

Adapts the browser launch configurations to use the bundled backend.
This allows to start the browser application after it was built once,
independent of the current state of the native Node module
dependencies.

.vscode/launch.json

@@ -55,7 +55,7 @@
       "type": "node",
       "request": "launch",
       "name": "Launch Browser Backend",
-      "program": "${workspaceFolder}/applications/browser/src-gen/backend/main.js",
+      "program": "${workspaceFolder}/applications/browser/lib/backend/main.js",
       "args": [
         "--hostname=0.0.0.0",
         "--port=3000",
@@ -94,7 +94,7 @@
       "type": "node",
       "request": "launch",
       "name": "Launch Browser Backend (eclipse.jdt.ls)",
-      "program": "${workspaceFolder}/applications/browser/src-gen/backend/main.js",
+      "program": "${workspaceFolder}/applications/browser/lib/backend/main.js",
       "args": [
         "--log-level=debug",
         "--root-dir=${workspaceFolder}/../eclipse.jdt.ls/org.eclipse.jdt.ls.core",
@@ -150,7 +150,7 @@
       "type": "node",
       "request": "launch",
       "args": [
-        "${workspaceFolder}/applications/browser/src-gen/backend/main.js",
+        "${workspaceFolder}/applications/browser/lib/backend/main.js",
         "${workspaceFolder}/plugins/vscode-api-tests/testWorkspace",
         "--port",
         "3030",