Onboarding guide and initial achievements refactoring (#11536)

* add achievements to user

* add placeholder strings

* add to achievements to common script

* add onboarding achievements category

* add notifications

* more notifications

* award achievements

* wip notification panel

* add achievements icons and copy

* do not count onboarding tasks for the created task achievement

* add notes

* sprites, fixes and completion status and reward

* add onboarding panel

* add toggle

* fix toggle size

* fix tests

* fix typo

* add notification

* start adding modal

* fix remove button positionin, timeout, progress bar

* modal + fixes

* disable broken social links from level up modal

* change toggle icon color on hover

* add border bottom to onboarding guide panel

* add collapse animation

* expanded onboarding on first open

* onboarding: flip toggle colors

* onboarding: show progress bar all the time

* onboarding: fix panel closing on click

* onboarding modal: add close icon and fix padding

* wip: add migration for existing users

* fix titles in guide

* fix achievements copy

* do not award completed task achievement when direction is down

* start implementing new achievements

* start migrating client

* remove social links from achievements modals

* prevent skipping tutorial + fix achievement notification

* sync fixes

* start redesign achievement modal

* misc fixes to achievements, polish generic achievement modal and hatched pet modal

* add special badge for onboarding

* fix badge condition

* modals fixes

* hatched pet modal: add close icon

* fix badge typo

* fix justin button

* new scrolling behavior for dropdowns

* fix strings capitalization

* add common tests

* add api unit tests

* add date check

* achievements modal polishing

* typos

* add toggle for achievements categories

* typo

* fix test

* fix edit avatar modal cannot be closed

* finish migration and correct launch date

* fix migration

* migration fixes

* fix tests

website/client/src/components/ui/customMenuDropdown.vue

@@ -50,8 +50,6 @@ A simplified dropdown component that doesn't rely on buttons as toggles  like bo
   .dropdown-menu {
     cursor: auto;
     box-shadow: 0 2px 2px 0 rgba($black, 0.16), 0 1px 4px 0 rgba($black, 0.12);
-    max-height: calc(100vh - 100px);
-    overflow: auto;
     left: inherit;
     right: 0px !important;