Prefer `only` over `except` in imports_controller

app/controllers/projects/imports_controller.rb

@@ -5,10 +5,10 @@ class Projects::ImportsController < Projects::ApplicationController
   include ImportUrlParams
 
   # Authorize
-  before_action :authorize_admin_project!, only: [:new, :create]
+  before_action :authorize_admin_project!, except: :show
   before_action :require_namespace_project_creation_permission, only: :show
-  before_action :require_no_repo, only: [:new, :create]
-  before_action :redirect_if_progress, only: [:new, :create]
+  before_action :require_no_repo, except: :show
+  before_action :redirect_if_progress, except: :show
   before_action :redirect_if_no_import, only: :show
 
   def new