Make sure we re-hide hidden fields

Fields that are forced to be shown need to be re-hidden when the find
dialog closes.  While they are _also_ brightened, this flag may be
cleared by other processes, so we need to test for the forced visibility
as well.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/20865

Author: sethhillbrand

eeschema/tools/sch_find_replace_tool.cpp

@@ -58,7 +58,7 @@ int SCH_FIND_REPLACE_TOOL::UpdateFind( const TOOL_EVENT& aEvent )
                     m_selectionTool->BrightenItem( aItem );
                     m_foundItemHighlighted = true;
                 }
-                else if( aItem->IsBrightened() )
+                else if( aItem->IsBrightened() || aItem->IsForceVisible() )
                 {
                     aItem->SetForceVisible( false );
                     m_selectionTool->UnbrightenItem( aItem );