[AC-1911] Clients: Create components to manage client organization seat allocation (#8505)

* implementing the clients changes

* resolve pr comments on message.json

* moved the method to billing-api.service

* move the request and response files to billing folder

* remove the adding existing orgs

* resolve the routing issue

* resolving the pr comments

* code owner changes

* fix the assignedseat

* resolve the warning message

* resolve the error on update

* passing the right id

* resolve the unassign value

* removed unused logservice

* Adding the loader on submit button

apps/web/src/locales/en/messages.json

@@ -4956,6 +4956,9 @@
   "addExistingOrganization": {
     "message": "Add existing organization"
   },
+  "addNewOrganization": {
+    "message": "Add new organization"
+  },
   "myProvider": {
     "message": "My Provider"
   },
@@ -7642,5 +7645,38 @@
   },
   "items": {
     "message": "Items"
+  },
+  "assignedSeats": {
+    "message": "Assigned seats"
+  },
+  "assigned": {
+    "message": "Assigned"
+  },
+  "used": {
+    "message": "Used"
+  },
+  "remaining": {
+    "message": "Remaining"
+  },
+  "unlinkOrganization": {
+    "message": "Unlink organization"
+  },
+  "manageSeats": {
+    "message": "MANAGE SEATS"
+  },
+  "manageSeatsDescription": {
+    "message": "Adjustments to seats will be reflected in the next billing cycle."
+  },
+  "unassignedSeatsDescription": {
+    "message": "Unassigned subscription seats"
+  },
+  "purchaseSeatDescription": {
+    "message": "Additional seats purchased"
+  },
+  "assignedSeatCannotUpdate": {
+    "message": "Assigned Seats can not be updated. Please contact your organization owner for assistance."
+  },
+  "subscriptionUpdateFailed": {
+    "message": "Subscription update failed"
   }
 }