feat: Companies page (#12842)

# Pull Request Template

## Description

This PR introduces a new Companies section in the Chatwoot dashboard. It
lists all companies associated with the account and includes features
such as **search**, **sorting**, and **pagination** to enable easier
navigation and efficient management.

Fixes
https://linear.app/chatwoot/issue/CW-5928/add-companies-tab-to-dashboard

## Type of change

- [x] New feature (non-breaking change which adds functionality)

## How Has This Been Tested?

### Screenshot
<img width="1619" height="1200" alt="image"
src="https://github.com/user-attachments/assets/21f0a666-c3d6-4dec-bd02-1e38e0cd9542"
/>



## 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: Vinay Keerthi <11478411+stonecharioteer@users.noreply.github.com>
Co-authored-by: Shivam Mishra <scm.mymail@gmail.com>

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

@@ -0,0 +1,32 @@
+{
+  "COMPANIES": {
+    "HEADER": "Companies",
+    "SORT_BY": {
+      "LABEL": "Sort by",
+      "OPTIONS": {
+        "NAME": "Name",
+        "DOMAIN": "Domain",
+        "CREATED_AT": "Created at"
+      }
+    },
+    "ORDER": {
+      "LABEL": "Order",
+      "OPTIONS": {
+        "ASCENDING": "Ascending",
+        "DESCENDING": "Descending"
+      }
+    },
+    "SEARCH_PLACEHOLDER": "Search companies...",
+    "LOADING": "Loading companies...",
+    "UNNAMED": "Unnamed Company",
+    "CONTACTS_COUNT": "{count} contacts",
+    "EMPTY_STATE": {
+      "TITLE": "No companies found"
+    }
+  },
+  "COMPANIES_LAYOUT": {
+    "PAGINATION_FOOTER": {
+      "SHOWING": "Showing {startItem} - {endItem} of {totalItems} companies"
+    }
+  }
+}

app/javascript/dashboard/i18n/locale/en/index.js

@@ -8,6 +8,7 @@ import bulkActions from './bulkActions.json';
 import campaign from './campaign.json';
 import cannedMgmt from './cannedMgmt.json';
 import chatlist from './chatlist.json';
+import companies from './companies.json';
 import components from './components.json';
 import contact from './contact.json';
 import contactFilters from './contactFilters.json';
@@ -49,6 +50,7 @@ export default {
   ...campaign,
   ...cannedMgmt,
   ...chatlist,
+  ...companies,
   ...components,
   ...contact,
   ...contactFilters,

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

@@ -306,6 +306,8 @@
     "SETTINGS": "Settings",
     "CONTACTS": "Contacts",
     "ACTIVE": "Active",
+    "COMPANIES": "Companies",
+    "ALL_COMPANIES": "All Companies",
     "CAPTAIN": "Captain",
     "CAPTAIN_ASSISTANTS": "Assistants",
     "CAPTAIN_DOCUMENTS": "Documents",