ability to expand and collapse title

Is your feature request related to a problem? Please describe.

Not a problem, just a idea of feature.

Describe the solution you'd like

Hi there,

I'm having some big notes, that i used to organise with hierarchy of titles writed with markdown (with #).

An idea just come in my usage : the possibility to collapse all the paragraphs of a title by clicking (for exemple) three times on the title, and let "..." to show that a part of the note is hidden. So that we can expand it later by clicking back three times.

Thank for the job done here. I really like to use this app every days!!

Describe alternatives you've considered

No response

Additional context

No response

No files, tests, or entry points are named. Start by tracing how Markdown headings and their following paragraphs are rendered in the Android client, then determine where title expansion state belongs. Done means headings can collapse and expand their sections, with a visible indication when content is hidden.