Updated account, groups relationships routes to post data instead of get

• Updated:
- account, groups relationships routes to post data instead of get

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

@@ -4,21 +4,22 @@ class Api::V1::Accounts::RelationshipsController < Api::BaseController
   before_action -> { doorkeeper_authorize! :read, :'read:follows' }
   before_action :require_user!
 
-  def index
+  def relationships
     accounts = Account.where(id: account_ids).select('id')
     # .where doesn't guarantee that our results are in the same order
     # we requested them, so return the "right" order to the requestor.
     @accounts = accounts.index_by(&:id).values_at(*account_ids).compact
-    render json: @accounts, each_serializer: REST::RelationshipSerializer, relationships: relationships
+    render json: @accounts, each_serializer: REST::RelationshipSerializer, relationships: get_relationships
   end
 
   private
 
-  def relationships
+  def get_relationships
     AccountRelationshipsPresenter.new(@accounts, current_user.account_id)
   end
 
   def account_ids
-    Array(params[:id]).map(&:to_i)
+    the_take = current_user.staff? ? 100 : 25
+    params[:accountIds].map(&:to_i).take(the_take)
   end
 end