feat: Upgrade page instead of banner (#11202)

# Pull Request Template

## Description

This PR will replace the upgrade banner with an upgrade page view.

## Type of change

- [x] Bug fix (non-breaking change which fixes an issue)

## How Has This Been Tested?

### Loom video

https://www.loom.com/share/0f2b4b09acdd4404bf3211184a470227?sid=7ed60a99-0299-4642-b907-2af8c4dcc643


## Checklist:

- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my code
- [x] I have commented on my code, particularly in hard-to-understand
areas
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] Any dependent changes have been merged and published in downstream
modules

---------

Co-authored-by: Pranav <pranavrajs@gmail.com>

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

@@ -1,5 +1,11 @@
 {
   "GENERAL_SETTINGS": {
+    "LIMIT_MESSAGES": {
+      "CONVERSATION": "You have exceeded the conversation limit. Hacker plan allows only 500 conversations.",
+      "INBOXES": "You have exceeded the inbox limit. Hacker plan only supports website live-chat. Additional inboxes like email, WhatsApp etc. require a paid plan.",
+      "AGENTS": "You have exceeded the agent limit. Hacker plan allows only 2 agents.",
+      "NON_ADMIN": "Please contact your administrator to upgrade the plan and continue using all features."
+    },
     "TITLE": "Account settings",
     "SUBMIT": "Update settings",
     "BACK": "Back",
@@ -51,6 +57,7 @@
     "UPDATE_CHATWOOT": "An update {latestChatwootVersion} for Chatwoot is available. Please update your instance.",
     "LEARN_MORE": "Learn more",
     "PAYMENT_PENDING": "Your payment is pending. Please update your payment information to continue using Chatwoot",
+    "UPGRADE": "Upgrade to continue using Chatwoot",
     "LIMITS_UPGRADE": "Your account has exceeded the usage limits, please upgrade your plan to continue using Chatwoot",
     "OPEN_BILLING": "Open billing"
   },