feat: Support for Markdown Formatting Keyboard Shortcuts

[Abhi-Bohora]

Changes

Link: #1624

Describe what this PR does

This PR adds the keyboard shortcuts to format the markdown here are the descriptions of what each shortcut do:
cmd/ctrl+b : set selected text as bold
cmd/ctrl+i : set selected text as italics
(pressing cmd/ctrl+b or cmd/ctrl+i again on the selected text will undo the formatting)

cmd/ctrl+l : replace selected text with text, the author of the issue wanted this command to be cmd/ctrl+k but we already have this shortcut for search i guess, so pressing this command will take the focus to search input field so i decided to change the combination.
cmd/ctrl+v : when pasting a link over selected text, convert to hyperlink

Note
I have tested this on windows and linux haven't tested it on mac

This was fun and challenging for me. As we all know text manipulation is not a fun thing to do....😉
Thank you daily.dev for keeping this awesome project open-source 🙏❤️

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Experiment

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Manual Testing

Caution

Please make sure existing components are not breaking/affected by this PR

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Name	Status	Preview	Updated (UTC)
daily-webapp	✅ Ready (Inspect)	Visit Preview	Dec 6, 2024 1:04pm

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[sshanzel]

This is looking great overall. Love how much effort you've put into this, I can see it through how well the code is.

Just had one question, but I will be soon testing this. Also, apologies for the time taken before the initial review 🙏