Markdown fomatting breaks when splitting comments

[dangershin]

• I have searched through the current issues and did not find any that were related.

Describe the bug
When creating a long issue body using issue-body-file-path, the comment is broken up into multiple comments. In doing so, it breaks the markdown formatting for blocks that use opening and closing tags such as <details> or code (```)

To Reproduce
Steps to reproduce the behavior:

1. Create a long code block (```) and/or <details> block in a markdown file with greater than 65,536 characters.
2. Use issue-body-file-path to include this file in the issue body.
3. The formatting is broken when the comment is split up.

Expected behavior
The comment should be split up and properly apply any continuing formatting in all comments. If a <details> block or a code (```) block is included, for example, it should start the new comment with this formatting.

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Add any other context about the problem here.

[snskArora]

Hi @dangershin

I'm sorry for not getting back to you sooner.
The issue created by you is genuine, but the challenge is that with huge README files, we will have to keep track of every nested README block and open/close based on the length of the closing parameters (block closes might not happen in order of opens). Also, with some readme formatting like multi-line - or *, we end up with broken formatting again.
I would love to hear if you have any suggestions on it, or even better, if you can suggest a solution and then implement it as well.