eeschema: can't tab past the dropdown in find/replace [GTK-specific?]

Description

In the Find and Replace dialog, it's not possible to advance from the "find" field to the "replace" field via the tab key. The keyboard focus gets stuck on the dropdown button next to find.

Steps to reproduce

1. Open find and replace
2. Hit the tab button repeatedly

KiCad Version

Application: KiCad Schematic Editor x86_64 on x86_64

Version: 8.0.2-rc2-2-ga5ca0f4c5e, release build

Libraries:
	wxWidgets 3.2.4
	FreeType 2.11.1
	HarfBuzz 2.7.4
	FontConfig 2.13.1
	libcurl/7.81.0 OpenSSL/3.0.2 zlib/1.2.11 brotli/1.0.9 zstd/1.4.8 libidn2/2.3.2 libpsl/0.21.0 (+libidn2/2.3.2) libssh/0.9.6/openssl/zlib nghttp2/1.43.0 librtmp/2.3 OpenLDAP/2.5.17

Platform: Ubuntu 22.04.4 LTS, 64 bit, Little endian, wxGTK, X11, xubuntu, x11

Build Info:
	Date: Apr 22 2024 15:07:02
	wxWidgets: 3.2.4 (wchar_t,wx containers) GTK+ 3.24
	Boost: 1.74.0
	OCC: 7.6.3
	Curl: 7.81.0
	ngspice: 36
	Compiler: GCC 11.4.0 with C++ ABI 1016

Build settings: