Road to v3.0.0-beta.1

- replaced slimScroll to overlayScrollbars
- added new layout types (fixed, navbar-fixed & footer-fixed)
- changed old default layout from "fixed" to non-fixed
- enhanced PushMenu.js to load options via data
- enhanced Layout.js new layout calcs, options via data for scrollbar
- fixed forms fontawesome icons
- added warning-feedback (without icon)
- added sidebar-mini-md
- updated index to use layout-fixed
- updated index2 to use layout-fixed, layout-navbar-fixed & layout-footer-fixed

package.json

@@ -45,13 +45,14 @@
   },
   "dependencies": {
     "@ckeditor/ckeditor5-build-classic": "^1.0.0-beta.4",
+    "@fortawesome/fontawesome-free": "^5.8.2",
     "bootstrap": "^4.3.1",
     "chart.js": "^2.8.0",
     "datatables.net": "^1.10.19",
     "datatables.net-bs4": "^1.10.19",
-    "@fortawesome/fontawesome-free": "^5.8.2",
     "jquery": "^3.4.1",
     "jquery-ui": "^1.12.1",
+    "overlayscrollbars": "^1.7.1",
     "popper.js": "^1.15.0"
   },
   "peerDependencies": {