Schematic Symbol: Description update not updated in Library table
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# Description
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# Steps to reproduce
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1. open a symbol in symbol editor
2. change the description + press ok
3. Description in the Library is not updated immediately, only if you close the Symbol Editor

# KiCad Version
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```
Application: KiCad Symbol Editor x64 on x64
Version: 8.0.0-rc2-533-g0cf433b28e, release build
Libraries:
wxWidgets 3.2.4
FreeType 2.12.1
HarfBuzz 8.3.0
FontConfig 2.14.2
libcurl/8.5.0-DEV Schannel zlib/1.3
Platform: Windows 10 (build 19045), 64-bit edition, 64 bit, Little endian, wxMSW
Build Info:
Date: Feb 13 2024 06:18:23
wxWidgets: 3.2.4 (wchar_t,wx containers)
Boost: 1.83.0
OCC: 7.7.1
Curl: 8.5.0-DEV
ngspice: 42
Compiler: Visual C++ 1936 without C++ ABI
Build settings:
```
issue