Rename epic_list permissions

It was pointed out that these names might be confusing, new names
should make it clearer that these permissions are related to epic
boards.

ee/app/graphql/mutations/boards/epic_lists/create.rb

@@ -15,7 +15,7 @@ module Mutations
               null: true,
               description: 'Epic list in the epic board.'
 
-        authorize :admin_epic_list
+        authorize :admin_epic_board_list
 
         private
 

ee/app/graphql/resolvers/boards/epic_lists_resolver.rb

@@ -30,7 +30,7 @@ module Resolvers
       private
 
       def authorize!
-        Ability.allowed?(context[:current_user], :read_epic_list, epic_board.group) || raise_resource_not_available_error!
+        Ability.allowed?(context[:current_user], :read_epic_board_list, epic_board.group) || raise_resource_not_available_error!
       end
 
       def preloads

ee/app/policies/ee/group_policy.rb

@@ -181,7 +181,7 @@ module EE
       rule { can?(:read_group) & epics_available }.policy do
         enable :read_epic
         enable :read_epic_board
-        enable :read_epic_list
+        enable :read_epic_board_list
       end
 
       rule { can?(:read_group) & iterations_available }.enable :read_iteration
@@ -198,7 +198,7 @@ module EE
         enable :read_confidential_epic
         enable :destroy_epic_link
         enable :admin_epic_board
-        enable :admin_epic_list
+        enable :admin_epic_board_list
       end
 
       rule { reporter & subepics_available }.policy do
@@ -215,7 +215,7 @@ module EE
         prevent :admin_epic
         prevent :update_epic
         prevent :destroy_epic
-        prevent :admin_epic_list
+        prevent :admin_epic_board_list
       end
 
       rule { auditor }.policy do

ee/spec/policies/group_policy_spec.rb

@@ -7,8 +7,8 @@ RSpec.describe GroupPolicy do
 
   let(:epic_rules) do
     %i(read_epic create_epic admin_epic destroy_epic read_confidential_epic
-       destroy_epic_link read_epic_board read_epic_list admin_epic_board
-       admin_epic_list)
+       destroy_epic_link read_epic_board read_epic_board_list admin_epic_board
+       admin_epic_board_list)
   end
 
   context 'when epics feature is disabled' do
@@ -59,7 +59,7 @@ RSpec.describe GroupPolicy do
       let(:current_user) { guest }
 
       it { is_expected.to be_allowed(:read_epic, :read_epic_board) }
-      it { is_expected.to be_disallowed(*(epic_rules - [:read_epic, :read_epic_board, :read_epic_list])) }
+      it { is_expected.to be_disallowed(*(epic_rules - [:read_epic, :read_epic_board, :read_epic_board_list])) }
     end
 
     context 'when user is not member' do