[release/7.0.2xx] [net7.0] [core] WeakEventManager.RemoveEventHandler() should clear subscriptions#14074

rmarinho merged 3 commits intorelease/7.0.2xxdotnet/maui:release/7.0.2xxfrom

backport/pr-13650-to-release/7.0.2xxdotnet/maui:backport/pr-13650-to-release/7.0.2xxCopy head branch name to clipboard