Macro can't executes a inserted `<del>` that deletes the newline character

Describe the bug
In insert mode, I usually press <del> to delete the newline character (so the last line above will concat the current line). Although this could be recorded by neovim, the vim extension could not record it correctly even if I enabled the neovim setting.

To Reproduce
Steps to reproduce the behavior:

1. move the cursor to any lines except the first line.
2. press 'q2' to record to q.
3. record these: 0i<del><esc>
   • press 0 to move to the head.
   • press i to switch to insert mode.
   • press <del> to delete the newline character.
   • press <esc> to switch to normal mode.
4. press '@2' to execute the recorded macro.

Sample

line1
line2
line3

Expected behavior
The insert mode actions should be executed correctly.

Environment (please complete the following information):

• Extension version: 1.25.2
• VS Code version: Code 1.80.1 (74f6148eb9ea00507ec113ec51c489d6ffb4b771, 2023-07-12T17:20:58.115Z)
• OS version: Darwin arm64 22.5.0

Additional context
I tested this on a VSCode profile that installs vim extension only and has no custom settings.

Start by reproducing the issue in the VS Code Vim extension with the recorded 0i<del><esc> macro and compare direct execution with replay via @2. Trace the macro recording and execution paths for insert-mode <del> handling; done means the macro joins the lines by deleting the newline when replayed.