UI/update global UI (#459)

* Update loading screen to use Lottie animation

- Replace simple logo with Lottie animation from loadercalendar.lottie
- Center animation on screen with full viewport coverage
- Set animation width to 175px
- Install @lottiefiles/dotlottie-react package

* update spacing event modal

* add twake workplace logo to loading screen

* update spacing create calendar modal

* fix evenchip description color

* using variant instead of sx

package.json

@@ -13,6 +13,7 @@
     "@fullcalendar/react": "^6.1.17",
     "@fullcalendar/timegrid": "^6.1.17",
     "@linagora/twake-mui": "^1.1.3",
+    "@lottiefiles/dotlottie-react": "^0.17.13",
     "@mui/icons-material": "^7.1.2",
     "@mui/material": "^7.1.2",
     "@mui/x-date-pickers": "^8.14.0",