feat: Add inline katex support

[Abbas-Askari]

Acceptance Criteria fulfillment

• [x] Add Support for KaTeX Inline.
• [x] Add Support for KaTex Blocks.
• [x] Add tooptip for katex errors.
• [x] Fix tooltip overflows.

Fixes #976

Video/Screenshots

KaTeX usage with: inline, block, color and error: error tooltip:

Tooltip Fixes:

All tooltips are working fine: Before Overflow fix: After Overflow fix:

PR Test Details

Note: The PR will be ready for live testing at https://rocketchat.github.io/EmbeddedChat/pulls/pr-977 after approval.