feat: Inbox list API integration (#8825)

* feat: Inbox view

* feat: Bind real values

* chore: code cleanup

* feat: add observer

* fix: Inbox icon

* chore: more code cleanup

* chore: Replace conversation id

* chore: Minor fix

* chore: Hide from side bar

* chore: Fix eslint

* chore: Minor fix

* fix: dark mode color

* chore: Minor fix

* feat: Add description for each notification types

* chore: remove commented code

* Update InboxList.vue

* Update InboxView.vue

* chore: fix specs

* fix: specs

* Update InboxView.vue

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Co-authored-by: iamsivin <iamsivin@gmail.com>
Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>

app/javascript/dashboard/i18n/locale/en/settings.json

@@ -193,6 +193,7 @@
     "CURRENTLY_VIEWING_ACCOUNT": "Currently viewing:",
     "SWITCH": "Switch",
     "CONVERSATIONS": "Conversations",
+    "INBOX": "Inbox",
     "ALL_CONVERSATIONS": "All Conversations",
     "MENTIONED_CONVERSATIONS": "Mentions",
     "PARTICIPATING_CONVERSATIONS": "Participating",