The search field on the Symbol Editor is focused when its window is first opened. Similar behavior has been implemented in the search field of the Footprint Editor with this change. Fixes: https://gitlab.com/kicad/code/kicad/-/issues/13100
Fixes https://gitlab.com/kicad/code/kicad/issues/2288
Fixes: lp:1784178 * https://bugs.launchpad.net/kicad/+bug/1784178 Fixes: lp:1780363 * https://bugs.launchpad.net/kicad/+bug/1780363