docs: how to translate dashboard (#292)

* add cloud translation api package

* feat: Script that auto generates translations for other languages

* add comments

* fix: broken translation

* improve translation

* update locck file

* clean up

* all round trasnlations check

* checkpoint

* finish up

* move to dev dependencies

* fix vercel build error

* translations fix

* - add documentation
- translation bug fix

* quick adjust

* PR Fixes

* add new line

* update docs

---------

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

apps/dashboard/src/lib/components/WelcomeModal/WelcomeModal.svelte

@@ -34,9 +34,9 @@
     <a href="https://app.classroomio.com/" class="text-primary-700 no-underline hover:no-underline"
       >ClassroomIO</a
     >
-    {$t('welcome_modal.content_1')}
-    <span class="text-primary-700">{$t('welcome_modal.content_2')};</span>
-    {$t('welcome_modal.content_3')}
+    {$t('welcome_modal.small_team')}
+    <span class="text-primary-700">{$t('welcome_modal.thank_you')};</span>
+    {$t('welcome_modal.deeply_appreciate')}
   </p>
   <img src="/images/welcome-img.svg" alt="A welcome banner" class="w-full my-6" />
 </Modal>