dev: intellij dev config builds jslib before webui launch

.idea/runConfigurations/dev_frontend.xml

@@ -7,6 +7,16 @@
     </scripts>
     <node-interpreter value="project" />
     <envs />
-    <method v="2" />
+    <method v="2">
+      <option name="NpmBeforeRunTask" enabled="true">
+        <package-json value="$PROJECT_DIR$/tools/upend_js/package.json" />
+        <command value="run" />
+        <scripts>
+          <script value="build" />
+        </scripts>
+        <node-interpreter value="project" />
+        <envs />
+      </option>
+    </method>
   </configuration>
 </component>