feat: invalidate cache after inbox members or team members update (#10869)

At the moment, when updating the inbox members, or team members the
account cache used for IndexedDB is not invalidated. This can cause
inconsistencies in the UI. This PR fixes this by adding explicit
invalidation after performing the member changes

### Summary of changes

1. Added a new method `add_members` and `remove_members` to both `team`
and `inbox` models. The change was necessary for two reasons
- Since the individual `add_member` and `remove_member` is called in a
loop, it's wasteful to run the cache invalidation in the method.
- Moving the account cache invalidation call in the controller pollutes
the controller business logic
2. Updated tests across the board

### More improvements

We can make a concern called `Memberable` with usage like
`memberable_with :inbox_members`, that can encapsulate the functionality

---

Related: https://github.com/chatwoot/chatwoot/issues/10578

app/controllers/api/v1/accounts/inbox_members_controller.rb

@@ -10,7 +10,7 @@ class Api::V1::Accounts::InboxMembersController < Api::V1::Accounts::BaseControl
   def create
     authorize @inbox, :create?
     ActiveRecord::Base.transaction do
-      agents_to_be_added_ids.map { |user_id| @inbox.add_member(user_id) }
+      @inbox.add_members(agents_to_be_added_ids)
     end
     fetch_updated_agents
   end
@@ -24,7 +24,7 @@ class Api::V1::Accounts::InboxMembersController < Api::V1::Accounts::BaseControl
   def destroy
     authorize @inbox, :destroy?
     ActiveRecord::Base.transaction do
-      params[:user_ids].map { |user_id| @inbox.remove_member(user_id) }
+      @inbox.remove_members(params[:user_ids])
     end
     head :ok
   end
@@ -41,8 +41,8 @@ class Api::V1::Accounts::InboxMembersController < Api::V1::Accounts::BaseControl
     # the missing ones are the agents which are to be deleted from the inbox
     # the new ones are the agents which are to be added to the inbox
     ActiveRecord::Base.transaction do
-      agents_to_be_added_ids.each { |user_id| @inbox.add_member(user_id) }
-      agents_to_be_removed_ids.each { |user_id| @inbox.remove_member(user_id) }
+      @inbox.add_members(agents_to_be_added_ids)
+      @inbox.remove_members(agents_to_be_removed_ids)
     end
   end
 

app/controllers/api/v1/accounts/team_members_controller.rb

@@ -9,14 +9,14 @@ class Api::V1::Accounts::TeamMembersController < Api::V1::Accounts::BaseControll
 
   def create
     ActiveRecord::Base.transaction do
-      @team_members = members_to_be_added_ids.map { |user_id| @team.add_member(user_id) }
+      @team_members = @team.add_members(members_to_be_added_ids)
     end
   end
 
   def update
     ActiveRecord::Base.transaction do
-      members_to_be_added_ids.each { |user_id| @team.add_member(user_id) }
-      members_to_be_removed_ids.each { |user_id| @team.remove_member(user_id) }
+      @team.add_members(members_to_be_added_ids)
+      @team.remove_members(members_to_be_removed_ids)
     end
     @team_members = @team.members
     render action: 'create'
@@ -24,7 +24,7 @@ class Api::V1::Accounts::TeamMembersController < Api::V1::Accounts::BaseControll
 
   def destroy
     ActiveRecord::Base.transaction do
-      params[:user_ids].map { |user_id| @team.remove_member(user_id) }
+      @team.remove_members(params[:user_ids])
     end
     head :ok
   end