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

---------

Co-authored-by: Rotimi Best <best@classroomio.com>

apps/dashboard/src/routes/+layout.svelte

@@ -35,6 +35,7 @@
   import { identifyPosthogUser, initPosthog } from '$lib/utils/services/posthog';
   import { initSentry, setSentryUser } from '$lib/utils/services/sentry';
   import UpgradeModal from '$lib/components/Upgrade/Modal.svelte';
+  import { handleLocaleChange } from '$lib/utils/functions/translations';
 
   import '../app.postcss';
 
@@ -124,6 +125,9 @@
 
         setAnalyticsUser();
 
+        // Fetch language
+        handleLocaleChange($profile.locale);
+
         if (data.isOrgSite) {
           const { data, error } = await supabase
             .from('organizationmember')
@@ -166,6 +170,9 @@
       // Set user in sentry
       setAnalyticsUser();
 
+      // Fetch language
+      handleLocaleChange($profile.locale);
+
       const orgRes = await getOrganizations(profileData.id, data.isOrgSite, data.orgSiteName);
 
       // student redirect