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

src/utils/validation.js

@@ -7,9 +7,11 @@ const emailField = z
     .min(1, 'VALIDATION.EMAIL_REQUIRED')
     .email('VALIDATION.EMAIL_INVALID');
 
+// Auth hashes with BCrypt, which takes at most 72 bytes.
 const passwordField = z
     .string()
-    .min(8, 'VALIDATION.PASSWORD_TOO_SHORT');
+    .min(8, 'VALIDATION.PASSWORD_TOO_SHORT')
+    .refine((value) => new TextEncoder().encode(value).length <= 72, 'VALIDATION.PASSWORD_TOO_LONG');
 
 const inviteCodeField = z
     .string()
@@ -40,7 +42,5 @@ export const registrationSchema = z
     });
 
 export const settingsSchema = z.object({
-    useDarkTheme: z.boolean(),
-    language: z.enum(['en', 'de'], {message: 'VALIDATION.LANGUAGE_INVALID'}),
     displayName: displayNameField,
 });