Remove bootstrap classes from shared code (#12906)

Migrates the following components to not use bootstrap.

- apps/web/src/app/components/environment-selector/environment-selector.component.html
- apps/web/src/app/layouts/frontend-layout.component.html
- apps/web/src/app/layouts/org-switcher/org-switcher.component.html
- apps/web/src/app/settings/domain-rules.component.html
- bitwarden_license/bit-web/src/app/secrets-manager/projects/project/project-secrets.component.html
- bitwarden_license/bit-web/src/app/secrets-manager/settings/porting/sm-import.component.html

apps/web/src/app/components/environment-selector/environment-selector.component.html

@@ -6,10 +6,9 @@
       [attr.href]="
         region == currentRegion ? 'javascript:void(0)' : region.urls.webVault + routeAndParams
       "
-      class="pr-4"
     >
       <i
-        class="bwi bwi-fw bwi-sm bwi-check pb-1"
+        class="bwi bwi-fw bwi-sm bwi-check"
         aria-hidden="true"
         [style.visibility]="region == currentRegion ? 'visible' : 'hidden'"
       ></i>