fix(settings): keep the language and save settings one after the other

public/i18n/de.json

@@ -134,10 +134,10 @@
     "EMAIL_REQUIRED": "Email ist erforderlich.",
     "EMAIL_INVALID": "Gib eine gültige Email-Adresse ein.",
     "PASSWORD_TOO_SHORT": "Passwort muss mindestens 8 Zeichen haben.",
+    "PASSWORD_TOO_LONG": "Passwort ist zu lang: höchstens 72 Zeichen, mit Umlauten oder Emoji weniger.",
     "PASSWORD_CONFIRMATION_REQUIRED": "Bitte Passwort bestätigen.",
     "PASSWORD_MISMATCH": "Die Passwörter stimmen nicht überein.",
     "INVITE_CODE_REQUIRED": "Einladungscode ist erforderlich.",
-    "LANGUAGE_INVALID": "Nicht unterstützte Sprache.",
     "DISPLAY_NAME_INVALID": "3–24 Zeichen: Buchstaben, Zahlen, Leerzeichen, _ . - (kein Leerzeichen am Anfang oder Ende)."
   },
   "INFO": {

public/i18n/en.json

@@ -134,10 +134,10 @@
     "EMAIL_REQUIRED": "Email is required.",
     "EMAIL_INVALID": "Enter a valid email address.",
     "PASSWORD_TOO_SHORT": "Password must be at least 8 characters.",
+    "PASSWORD_TOO_LONG": "Password is too long: at most 72 characters, fewer with umlauts or emoji.",
     "PASSWORD_CONFIRMATION_REQUIRED": "Please confirm your password.",
     "PASSWORD_MISMATCH": "Passwords do not match.",
     "INVITE_CODE_REQUIRED": "Invite code is required.",
-    "LANGUAGE_INVALID": "Unsupported language.",
     "DISPLAY_NAME_INVALID": "3–24 characters: letters, digits, spaces, _ . - (no space at the start or end)."
   },
   "INFO": {