Improve error messages based on code review feedback

Co-authored-by: jepp9350 <17977216+jepp9350@users.noreply.github.com>

src/i18n/locales/da.json

@@ -31,7 +31,7 @@
     "error": {
       "title": "Fejl",
       "validation_error": "Der opstod en fejl under validering af adgangskoden.",
-      "generic_error": "Der opstod en fejl"
+      "save_email_error": "Der opstod en fejl under gemme af e-mailadressen."
     }
   },
   "common": {

src/i18n/locales/en.json

@@ -31,7 +31,7 @@
     "error": {
       "title": "Error",
       "validation_error": "An error occurred while validating the password.",
-      "generic_error": "An error occurred"
+      "save_email_error": "An error occurred while saving the email address."
     }
   },
   "common": {

src/views/dashboards/userDashboard/profile/UserProfile.vue

@@ -114,7 +114,7 @@ const onSaveEmail = async (password) => {
         } else {
           Swal.fire({
             title: t('profile.error.title'),
-            text: t('profile.error.generic_error'),
+            text: t('profile.error.save_email_error'),
             icon: 'error',
           });
         }