Merge branch 'devel' of https://github.com/tinode/webapp into devel

package.json

@@ -84,6 +84,7 @@
     "copy-webpack-plugin": "^5.1.1",
     "cssnano": "^4.1.10",
     "postcss": "^7.0.27",
+    "postcss-cli": "^7.1.0",
     "terser-webpack-plugin": "^2.3.5",
     "webpack": "^4.42.0",
     "webpack-cli": "^3.3.11"

src/views/messages-view.jsx

@@ -9,7 +9,7 @@ import DocPreview from '../widgets/doc-preview.jsx';
 import ErrorPanel from '../widgets/error-panel.jsx';
 import GroupSubs from '../widgets/group-subs.jsx';
 import ImagePreview from '../widgets/image-preview.jsx';
-import Invitation from '../widgets/Invitation.jsx';
+import Invitation from '../widgets/invitation.jsx';
 import LetterTile from '../widgets/letter-tile.jsx';
 import LoadSpinner from '../widgets/load-spinner.jsx';
 import LogoView from './logo-view.jsx';