Some emojis (emoticons) break the MD parser

Description:

If you post a message like this one: *text:* you will not get a bold text or text with emoji.
I suppose, there is a bug in a PEG grammar: see packages/message-parser/src/grammar.pegjs

Some where between rules Bold and Emoticon. The root of this case is :* - kissing_heart emoticon.

I've thired to figure out how this PEG works, but failed.

Steps to reproduce:

1. Post a message *text:*

Expected behavior:

There is a bolded text text:

Actual behavior:

There is just a text.
Note: If you post *text :* you will get *text and an emoji.

Server Setup Information:

• Version of Rocket.Chat Server: 6.9.0 and erlier
• Operating System: any
• Deployment Method: any
• Number of Running Instances: any
• NodeJS Version: 14.21.3
• MongoDB Version: 7.3

Client Setup Information

• Desktop App or Browser Version: any
• Operating System: any

Start with packages/message-parser/src/grammar.pegjs, focusing on the Bold and Emoticon rules and how the :* sequence is parsed. Reproduce the issue with *text:* and verify that it renders as bold text: while preserving the existing emoticon behavior.