symbol chooser, section already placed: not sorted

Description

The symbol chooser got a new section "already placed" added.

This feature could be improved if the content of this section would be alphabetically ordered.

Steps to reproduce

1. open attached project, open schematic:add_text_preserve_setting.zip (don't mind the projectname - this was reused from a different report)
2. look at the schematic - many symbols (from standard library)
3. Place-->Add symbol (or hotkey "A")
4. symbol chooser opens
5. on the top: new section "already placed"
6. expand the "already placed"-line:
7. --> shows all already used symbols --> very good
8. but the display of these symbols is completely unordered --> good for training brain and eye, but not very convenient

KiCad Version

Application: KiCad Schematic Editor x64 on x64

Version: 7.99.0-3819-gfcc6dec0e4, release build

Libraries:
	wxWidgets 3.2.4
	FreeType 2.12.1
	HarfBuzz 8.2.1
	FontConfig 2.14.2

Platform: Windows 10 (build 19045), 64-bit edition, 64 bit, Little endian, wxMSW

	wxWidgets: 3.2.4 (wchar_t,wx containers)
	Boost: 1.83.0
	OCC: 7.7.1
	Curl: 8.4.0-DEV
	ngspice: 41
	Compiler: Visual C++ 1936 without C++ ABI

Build settings: