Fix some error codes

Author: Knerio

app/graphql/mutations/namespaces/projects/delete.rb

@@ -16,7 +16,7 @@ def resolve(namespace_project_id:)
 
           if project.nil?
             return { organization_project: nil,
-                     errors: [create_error(:namespace_project_not_found, 'Invalid project')] }
+                     errors: [create_error(:project_not_found, 'Invalid project')] }
           end
 
           ::Namespaces::Projects::DeleteService.new(

app/graphql/mutations/namespaces/projects/flows/create.rb

@@ -20,7 +20,7 @@ def resolve(project_id:, flow:, **_params)
             if project.nil?
               return {
                 flow: nil,
-                errors: [create_error(:namespace_project_not_found, 'Invalid project id')],
+                errors: [create_error(:project_not_found, 'Invalid project id')],
               }
             end
 

app/graphql/mutations/namespaces/roles/assign_projects.rb

@@ -21,7 +21,7 @@ def resolve(role_id:, project_ids:)
 
           if projects.any?(&:nil?)
             return { projects: nil,
-                     errors: [create_error(:namespace_project_not_found, 'Invalid project')] }
+                     errors: [create_error(:project_not_found, 'Invalid project')] }
           end
 
           ::Namespaces::Roles::AssignProjectsService.new(