Replace query marker fade animation with css #5307
Merged
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Fixes #5305.
Currently query markers are animated using javascript which requires managing timed events. We don't do it correctly, we don't cancel them when markers are removed. That's why #5305 happens.
This PR replaces the javascript animation with the css which doesn't require any event handlers. I could have added animation end events to remove the marker layer but once faded out it doesn't affect anything and it's cleaned up in
page.unload
.