Feature: Ability to switch between multiple accounts (#881)

* Feature: Ability to switch between multiple accounts

* Fix rubocop

* Fix assigned inboxes

* fix auth json

* Add account switcher in UI

* fix ordering on administrate

* Add switch accounts to sidebar

* add account id

* Fix schema.rb timestamp

* Revert "add account id"

This reverts commit 27570f50ef584cb9a5f69454f43f630b318c8807.

* Add a check for account

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

app/policies/account_policy.rb

@@ -1,13 +1,13 @@
 class AccountPolicy < ApplicationPolicy
   def show?
-    # FIXME : temporary hack to transition over to multiple accounts per user
-    # We should be fetching the current account user relationship here.
-    @user.administrator?
+    @account_user.administrator? || @account_user.agent?
   end
 
   def update?
-    # FIXME : temporary hack to transition over to multiple accounts per user
-    # We should be fetching the current account user relationship here.
-    @user.administrator?
+    @account_user.administrator?
+  end
+
+  def update_active_at?
+    true
   end
 end