Scroll performance
Scroll performance

Fewer events, and ensure an event is fired after the end of the scroll.
https://github.com/FreshRSS/FreshRSS/pull/1309

romibi/FreshRSS,Alkarex/FreshRSS,aledeg/FreshRSS,marienfressinaud/FreshRSS,romibi/FreshRSS,aledeg/FreshRSS,marienfressinaud/FreshRSS,Alkarex/FreshRSS,FreshRSS/FreshRSS,FreshRSS/FreshRSS,romibi/FreshRSS,aledeg/FreshRSS,aledeg/FreshRSS,marienfressinaud/FreshRSS,Alkarex/FreshRSS,FreshRSS/FreshRSS,Alkarex/FreshRSS,FreshRSS/FreshRSS,romibi/FreshRSS,marienfressinaud/FreshRSS