feat: Adds the ability to have custom view for conversations (#3666)

* feat: Adds the ability to save custom filters and display folders on the sidebar

* Minor fixes

* Review fixes

* Review fixes

* i18n fixes

* Shows conversations when the user click on the folder sidebar item

* Spacing fixes

* Review fixes

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/javascript/dashboard/components/layout/sidebarComponents/SecondaryNavItem.vue

@@ -7,7 +7,7 @@
       v-else
       class="secondary-menu--title secondary-menu--link fs-small"
       :class="computedClass"
-      :to="menuItem.toState"
+      :to="menuItem && menuItem.toState"
     >
       <fluent-icon
         :icon="menuItem.icon"