search: add mutations to delete, toggle, and edit code monitors
Created by: stefanhengl
stacked on top of #15569
This PR completes the mutations for the table cm_monitors
.
The updated test is pretty long because it tests the flow create->toggle->edit->delete->delete again
. Usually, I would prefer to split the test into several smaller tests, however, the setup is expensive so I decided to trade execution time against readability/maintainability.
Next up: mutations for actions