Merged revision(s) 44915-44916 from trunk:
IDE: In ComponentList, replace OnKeyDown handler with OnKeyPress because FilterEdit uses it. Add OnAfterFilter handler. Part of issue #26035.
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IDE, select the first node initially in ComponentList. Part of issue #26035.
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git-svn-id: http://svn.freepascal.org/svn/lazarus/branches/fixes_1_2@45021 4005530d-fff6-0310-9dd1-cebe43e6787f