Crash when changing theme on linux

[kevin0t]

Feather wallet crashes when changing the theme to QDarkStyle on linux (fedora 39). The crash is not reproductible on changing theme every time but may happen for the first time only.

Version: 2.6.5-733bc8d25
OS: Linux 6.7.9-200.fc39.x86_64
 0# signal_handler(int) in /app/startup
 1# 0x00007F5AEE5C22A0 in /gnu/store/ln6hxqjvz6m9gdd9s97pivlqck7hzs99-glibc-2.35/lib/libc.so.6
 2# 0x00007F5AEE60BFEC in /gnu/store/ln6hxqjvz6m9gdd9s97pivlqck7hzs99-glibc-2.35/lib/libc.so.6
 3# raise in /gnu/store/ln6hxqjvz6m9gdd9s97pivlqck7hzs99-glibc-2.35/lib/libc.so.6
 4# signal_handler(int) in /app/startup
 5# 0x00007F5AEE5C22A0 in /gnu/store/ln6hxqjvz6m9gdd9s97pivlqck7hzs99-glibc-2.35/lib/libc.so.6
 6# 0x0000555665B746ED in /app/startup
 7# 0x0000555665BD15D0 in /app/startup
 8# 0x0000555665BD1B42 in /app/startup
 9# WindowManager::onChangeTheme(QString const&) in /app/startup
10# 0x000055566680587D in /app/startup
11# Settings::skinChanged(QString) in /app/startup
12# 0x0000555664B3BF96 in /app/startup
13# 0x000055566680587D in /app/startup
14# 0x0000555665C2D694 in /app/startup
15# 0x0000555665C30AE9 in /app/startup
16# 0x0000555665C310E0 in /app/startup
17# 0x000055566680587D in /app/startup
18# 0x0000555665C25AA2 in /app/startup
19# 0x0000555665C27EB0 in /app/startup
20# 0x00005556667C3FBE in /app/startup
21# 0x0000555665B38DB1 in /app/startup
22# 0x0000555665B46D58 in /app/startup
23# 0x00005556667C5508 in /app/startup
24# 0x0000555665B45E6A in /app/startup
25# 0x0000555665BA11D9 in /app/startup
26# 0x0000555665BA3513 in /app/startup
27# 0x0000555665B38DC2 in /app/startup
28# 0x00005556667C5508 in /app/startup
29# 0x00005556661A2F30 in /app/startup
30# 0x00005556661DD57C in /app/startup
31# 0x0000555665F92B43 in /app/startup
32# 0x00005556667CE83E in /app/startup
33# 0x0000555665CF5D65 in /app/startup
34# WindowManager::showSettings(Nodes*, QWidget*, bool) in /app/startup
35# 0x000055566680587D in /app/startup
36# 0x00005556663B59D8 in /app/startup
37# 0x0000555665C7804E in /app/startup
38# 0x0000555665C817F3 in /app/startup
39# 0x0000555665B90BA8 in /app/startup
40# 0x0000555665B38DC2 in /app/startup
41# 0x0000555665B46D58 in /app/startup
42# 0x00005556667C5508 in /app/startup
43# 0x0000555665B45E6A in /app/startup
44# 0x0000555665BA11D9 in /app/startup
45# 0x0000555665BA3513 in /app/startup
46# 0x0000555665B38DC2 in /app/startup
47# 0x00005556667C5508 in /app/startup
48# 0x00005556661A2F30 in /app/startup
49# 0x00005556661DD57C in /app/startup
50# 0x0000555665F92B43 in /app/startup
51# 0x00005556667CE83E in /app/startup
52# 0x00005556667CCEB4 in /app/startup
53# main in /app/startup
54# 0x00007F5AEE5AE1F7 in /gnu/store/ln6hxqjvz6m9gdd9s97pivlqck7hzs99-glibc-2.35/lib/libc.so.6
55# __libc_start_main in /gnu/store/ln6hxqjvz6m9gdd9s97pivlqck7hzs99-glibc-2.35/lib/libc.so.6
56# _start in /app/startup