[MM-62448] Remove react-bootstrap, bootstrap and dependencies (#3358)

package.json

@@ -163,8 +163,6 @@
     "@floating-ui/react": "0.26.28",
     "@mattermost/compass-icons": "0.1.45",
     "auto-launch": "5.0.6",
-    "bootstrap": "4.6.1",
-    "bootstrap-dark": "1.0.3",
     "classnames": "2.5.1",
     "electron-context-menu": "4.0.4",
     "electron-extension-installer": "1.2.0",
@@ -176,7 +174,6 @@
     "pretty-bytes": "6.1.1",
     "react": "17.0.2",
     "react-beautiful-dnd": "13.1.1",
-    "react-bootstrap": "1.6.4",
     "react-dom": "17.0.2",
     "react-intl": "6.6.2",
     "react-select": "5.8.0",