[BUG] Home key not functioning correctly with concealed fractions

[shunby]

Description

When a fraction is concealed at the start of the line, pressing Home key does not move the cursor to the start of the line.

To Reproduce

1. Open sandbox vault.
2. Install the plugin and enable concealment.
3. Make a note with the following content:

$$
\frac{a}{b} 
$$

4. Press Home key when the cursor is at the end of the line with the fraction.

Expected Behavior

The cursor should move to the start of the line.

Additional Info

OS: Windows 11 Home
Obsidian version: v1.6.7 (Installer version: v1.6.7)
plugin version: 1.9.5