[BUG] Shortcuts cannot be triggered automatically

[animerqi]

Description

Certain characters cannot be automatically replaced, whether in a regular editing environment or in a formula environment.

To Reproduce

For example, entering @a in $ will not be replaced with \alpha. To use the Tab key for replacement, you need to change "tA" to "t" in the settings.

Expected Behavior

entering @a in $ will be replaced with \alpha.

Additional Info

Windows11