the debounce time used in the timeline and courseoverview blocks is not enough

Test copied from MDL-72650 with minor changes. Initial setup Create as many courses as you want. Create a student account and enrol on these courses. Create a choice activity with the close day is next 7 days in one course. Timeline Log in as a student. go to the Dashboard. Add Timeline block to the Dashboard if necessary. Verify that you will see a search field called: Search by activity or name. Type something into the search field. Verify that 1 second after you stop typing, the X (clear) button is shown. (It's not important to measure if it was exactly 1 second. Just rely on your intuitive judgement) Press tab. Verify  that the X (clear) button will be clearly focused. Press Enter. Verify  that the search will be reset. Verify  that the search field will be focused. Course overview Log in as a student account. Go to the Dashboard. Add Course overview block to the Dashboard if necessary. Verify that you will see a search field called: Search. Type something into the search field. Verify that 1 second after you stop typing, the X (clear) button is shown. (It's not important to measure if it was exactly 1 second. Just rely on your intuitive judgement) Press tab. Verify  that the X (clear) button will be clearly focused. Verify  that the search feature still works as normal. Press Enter. Verify  that the search will be reset. Verify  that the search field will be focused.