Remove the invalid default dock directions for search panel

Fixes https://gitlab.com/kicad/code/kicad/-/issues/16636

eeschema/eeschema_settings.cpp

@@ -227,7 +227,7 @@ EESCHEMA_SETTINGS::EESCHEMA_SETTINGS() :
             &m_AuiPanels.search_panel_width, -1 ) );
 
     m_params.emplace_back( new PARAM<int>( "aui.search_panel_dock_direction",
-            &m_AuiPanels.search_panel_dock_direction, 0 ) );
+            &m_AuiPanels.search_panel_dock_direction, 3 ) );
 
     m_params.emplace_back( new PARAM<bool>( "aui.show_search",
             &m_AuiPanels.show_search, false ) );

pcbnew/pcbnew_settings.cpp

@@ -108,7 +108,7 @@ PCBNEW_SETTINGS::PCBNEW_SETTINGS()
             &m_AuiPanels.search_panel_width, -1 ) );
 
     m_params.emplace_back( new PARAM<int>( "aui.search_panel_dock_direction",
-            &m_AuiPanels.search_panel_dock_direction, 0 ) );
+            &m_AuiPanels.search_panel_dock_direction, 3 ) );
 
     m_params.emplace_back( new PARAM<int>( "aui.appearance_panel_tab",
             &m_AuiPanels.appearance_panel_tab, 0, 0, 2 ) );