Install package dialog: Remove accidentally added '(filter)' text. Issue #26433

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@45796 4005530d-fff6-0310-9dd1-cebe43e6787f
LCL: Don't add '(Filter)' to FilterEdit.Text while designing.

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@45797 4005530d-fff6-0310-9dd1-cebe43e6787f