Does not sync between the original textbox on the web page and the spawned neovim layer when using other ways to change the text

[glyh]

• OS Version: Linux arch 5.15.2-arch1-1 #1 SMP PREEMPT Fri, 12 Nov 2021 19:22:10 +0000 x86_64 GNU/Linux
• Browser Version: Brave 1.32.106 Chromium: 96.0.4664.45 (Official Build) (64-bit)
• Browser Addon Version: 0.2.10
• Neovim Plugin Version: 0.2.10

What I tried to do

For example, I click on the add bold text button on the rich text editor for github, we expect it insert the markdown pattern to firenvim.

What happened

It inserted to the textbox in the webpage, but not firenvim.