Support emoji shortcodes

[kofuk]

Hi,

Thank you for developing very useful browser extension.

I tried adding support for :emoji_name: style emoji shortcodes.
For example, :thinking: renders 🤔 emoji.

I'll be glad if you like this feature.

[ganta]

@kofuk Thank you for your contribution.

I am currently working on a significant redesign for Version 2. #403
In addition, I am doing partial merges, so that pull requests for changes are not huge.

Sorry, you contributed code that is in migration.
Therefore, even if I merge this Pull Request, I will not be able to release it immediately.
I am also considering implementing with Lexical so that the code may change significantly.

I hope you will understand this.

[kofuk]

Thank you for quick response.

Should I maintain this patch? or open another PR for version 2 in the future?

[ganta]

@kofuk Sorry, I missed the inclusion of code for v1 in your Pull Request.

As I mentioned above, the v2 release is still not in sight.
Therefore, I would prefer to merge the code for v1 so that it can be released sooner and be more helpful to users.

Can you please remove the changes for v2 from this pull request?
The part using rehype is the implementation for v2.

[kofuk]

Removed changes for v2.

If the changes is ok, I'll squash these commits into one commit.

[kofuk]

How about these changes?

[ganta]

@kofuk I don't have enough time, sorry. Please be patient

[ganta]

@kofuk Sorry to keep you waiting.

Looks good!
Please rebase your branch onto main branch and squash commits.

[kofuk]

Thank you for reviewing.

Rebased and squashed these commits.

[ganta]

@kofuk Thank you.

I will work on the release.
Please wait until the Chrome Web Store approves the release.

[kofuk]

Thank you!