feat: multi language support (#254)

* feat: multitranslational support

* - completion of settings page
- completion of sidebar

* sidebar rerendering bug fix

* completion of the lesson navigation & materials page

* completion of the course navigation

* completion of requested languages

* - Implementation of Language Picker
- Rename Bug Fixes

* checkpoint save

* - addition of the language picker to the onboarding.
- addition of the language switcher for the lesson notes.

* merge completion

* initialization of the new branch

* add transition.svelte file

* lesson note bug fix

* feat: add translation migration

* completion of translation

* fix height issue of dropdown

* refactoring

* fix: improve code with LOCALE from db

* finally get it fully functional

* connect with AI

* backward compatibility for lesson note

* preserve old content, when generating AI content

* undo translations in upgrade modal

* fix duplicate key issue from codacy trigger

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Co-authored-by: Rotimi Best <[email protected]>

apps/dashboard/src/routes/invite/s/[hash]/+page.svelte

@@ -63,7 +63,7 @@
       loading = false;
       if (addedMember.error) {
         console.error('Error adding student to group', data.groupId, addedMember.error);
-        snackbar.error('Joining failed, please contact your admin');
+        snackbar.error('snackbar.invite.failed_join');
         return;
       }