[PM-3294][PM-3293] Update Region Selector Domains (#5949)

* update desktop domains

* update web domains

* remove old translations from desktop

* update translations on browser

* change 'Region' to 'Server' on web

* change labels

* remove 'region' translation

* adjust alignmend so 'Self-hosted' label lines up with others

* adjust width and layout of trial-initiation header to accomodate longer text

apps/browser/src/_locales/en/messages.json

@@ -2221,19 +2221,17 @@
       }
     }
   },
-  "region": {
-    "message": "Region"
+  "loggingInOn": {
+    "message": "Logging in on"
   },
   "opensInANewWindow": {
     "message": "Opens in a new window"
   },
-  "eu": {
-    "message": "EU",
-    "description": "European Union"
+  "usDomain": {
+    "message": "bitwarden.com"
   },
-  "us": {
-    "message": "US",
-    "description": "United States"
+  "euDomain": {
+    "message": "bitwarden.eu"
   },
   "accessDenied": {
     "message": "Access denied. You do not have permission to view this page."