Add support for daily notes

[quentinus95]

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

Some other note tools support daily notes (e.g. Obsidian: https://help.obsidian.md/Plugins/Daily+notes). The concept is, when the app is opened, to have a daily note with the current date YYYY-MM-DD as its name.

It allows to quickly write down some stuff and retrieve it later to be reorganized.

Describe the solution you'd like
When opening the NextCloud Android app or the web app, I can immediately write down something and it will be saved in the daily note.

Describe alternatives you've considered
Creating the note myself, which is not very convenient when I need to write down something quick and forget about it.

[Ferk]

An interesting alternative approach would be adding the Templates suggestion from #854 and allowing some boilerplate in the template format so that setting [YYYY-MM-DD] as the filename for the template would be replaced with the date in the YYYY-MM-DD format, for example.

[joshtrichards]

Related:

• keyboard shortcut to add a date/time stamp  #954
• Edit Timestamp / Diary solution  #1233