Motivation / Problem

Fix for #8875

The newly added filter string textbox in the create station window automatically gets the focus when NewGRFs with custom stations are used. This "steals" hotkeys like A and DEL because you suddenly are typing text in that textbox.

Description

The auto focus on the text box was added as a suggestion here #8706 . I removed it again.

Limitations

Checklist for review

Some things are not automated, and forgotten often. This list is a reminder for the reviewers.

• The bug fix is important enough to be backported? (label: 'backport requested')
• This PR affects the save game format? (label 'savegame upgrade')
• This PR affects the GS/AI API? (label 'needs review: Script API')
  • ai_changelog.hpp, gs_changelog.hpp need updating.
  • The compatibility wrappers (compat_*.nut) need updating.
• This PR affects the NewGRF API? (label 'needs review: NewGRF')
  • newgrf_debug_data.h may need updating.
  • PR must be added to API tracker