SIGABORT while parsing an invalid config

[nikitabobko]

[[[on-window-detected]]
if.app-id = 'com.apple.findmy'
run = 'layout floating'

[on-window-detected]]
if.app-id = 'com.openai.chat'
run = 'layout floating'

Fails with:

Assertion failed: (is_bare_key_character(*cp) || is_string_delimiter(*cp)), function parse_key, file toml.hpp, line 14038.
fish: Job 1, './.debug/AeroSpaceApp --config-…' terminated by signal SIGABRT (Abort)

The problem should be further investigated and reported to https://github.com/LebJe/TOMLKit and/or https://github.com/marzer/tomlplusplus/

Originally reported at: #1061