Improvements to the description box

[Rafee-M]

I love the new redesign. I feel like the description could have a few more features.

Bigger Description Box:
It'd really helpful if the description box was bigger with support for multiple lines. It would allow to add detailed descriptions to Tasks and Categories

Suggested box implementation:

1. Giving the option to customise and show more than 1 line on the preview lines shown in todo list menu
   
2. The size of the popup shown on tapping a to-do could be increased or it could transition into a separate menu. Example from Doable

Record_2023-09-19-09-56-53_1.mp4

Markdown Support:
It'd be be really convenient if there was markdown support with some common options easily accessible.

Suggested markdown implementation:

1. Show common options such as bold, italic, highlighting on the long press menu (screenshot from Doable):
   

2. Show markdown options on a swipe-able bar:

Record_2023-09-19-09-42-15_1.mp4