Markdown Support for Post Preview Section

[guptaishan718]

Requirements

• [X] This is a bug report, and if not, please post to https://lemmy.ml/c/lemmy_support instead.
• [X] Please check to see if this issue already exists.
• [X] It's a single bug. Do not report multiple bugs in one issue.
• [X] It's a frontend issue, not a backend issue; Otherwise please create an issue on the backend repo instead.

Summary

Text is displayed in raw form, making the preview support markdown would make it much more cleaner.

Steps to Reproduce

1. Visit any instance
2. Check their preview

Technical Details

Chrome, PC

Lemmy Instance Version

0.18

Lemmy Instance URL

https://lemmy.fmhy.ml/

[petersanchez]

I believe this is a duplicate of #673