Tidy of components

- Moved all components into a single directory like nextjs
 - Made component names consistent with each other
 - Made component names consistent with their export class names
 - Added storybook for a few components with the aim to extend this further.

.github/workflows/ci.yml

@@ -90,6 +90,7 @@ jobs:
           ${{ runner.os }}-node-
     - run: npm install
     - run: npm run build
+    - run: npm run build-storybook
     - name: artifacts/editor
       uses: actions/upload-artifact@v1
       with:
@@ -101,6 +102,11 @@ jobs:
       with:
         name: editor-profiling
         path: build/profiling
+    - name: artifacts/storybook
+      uses: actions/upload-artifact@v1
+      with:
+        name: storybook
+        path: build/storybook
 
   # build and test the editor in standalone-chrome
   test_selenium_standalone_chrome: