Update node version dep for building / fix vendoring with .js embedded into .html.

Author: fabioz

.github/workflows/linting.yml

@@ -18,10 +18,10 @@ jobs:
         with:
           python-version: 3.8
 
-      - name: Setup node 12.x
+      - name: Setup node 16.x
         uses: actions/setup-node@v1
         with:
-          node-version: 12.x
+          node-version: 16.x
 
       - name: Install black
         run: |

.github/workflows/tests-robotframework-lsp.yml

@@ -66,7 +66,7 @@ jobs:
     - name: Setup node
       uses: actions/setup-node@v1
       with:
-        node-version: 12.x
+        node-version: 16.x
     - name: Upgrade pip
       run: python -m pip install --upgrade pip
     - name: Install robotframework from master

robotframework-ls/dev.py

@@ -292,8 +292,8 @@ def vendor_robot_stream(self):
         for f in os.listdir(vendored_webview):
             print(f)
 
-        bundle_js = os.path.join(vendored_webview, "bundle.js")
-        assert os.path.exists(bundle_js), f"{bundle_js} does not exist."
+        index_html = os.path.join(vendored_webview, "index.html")
+        assert os.path.exists(index_html), f"{index_html} does not exist."
         print("=== Finished vendoring.")
 
     def fix_readme(self):