[FIX] Encode URI in quotation (message) and channel links

[3da]

It fixes links to messages or channels with non ascii characters or spaces.

Proposed changes

Encode URI in quotation (message) and channel links

Issue(s)

How to test or reproduce

1. Create channel with spaces and non ascii symbols.
2. Create message.
3. Quote message.

Screenshots

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• Improvement (non-breaking change which improves a current function)
• New feature (non-breaking change which adds functionality)
• Documentation update (if none of the other choices apply)

Checklist

• I have read the CONTRIBUTING doc
• I have signed the CLA
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works (if applicable)
• I have added necessary documentation (if applicable)
• Any dependent changes have been merged and published in downstream modules

Further comments