Bug: Editing Mode Folded Codeblock Issues

[mayurankv]

Describe the bug

Folded codeblocks in editing mode have a number of issues including:

• [ ] Selecting and replacing (drag across codeblock and type) causes the fold region to disappear (unless you cursor into it)
• [ ] Typing or deleting fold parameter does not automatically update folding.

Completed:

• [x] When changing from Live Preview to Source Mode, the folded codeblocks disappear
• [x] Excluding or ignoring codeblocks which are folded makes the folded codeblock disappear
• [x] Temporary unfold should be applied if either end of any selection is inside the region, not just both ends

Steps to reproduce

Described above

Environment

• Plugin Version: 1.0.4
• Obsidian Version: 1.3.7
• Platform: Desktop
• OS: macOS

Screenshots

Additional context

See #30