Chore/engineio fix websocket comment formatting

[vipin8797]

The kind of change this PR does introduce

• a bug fix
• a new feature
• an update to the documentation
• a code change that improves performance
• other

Current behavior

The file packages/engine.io/lib/transports/websocket.ts contains a few minor comment formatting inconsistencies:

• Comments starting in lowercase
• Missing periods for sentence-like comments
• Inconsistent formatting in multi-line comments

New behavior

This PR improves comment formatting in websocket.ts:

• Capitalized comment beginnings
• Added missing periods
• Improved clarity of multi-line comments

No functional or behavioral changes were introduced.

Other information

This is a small internal cleanup PR.
よろしくお願いします！

[darrachequesne]

Hi! Thanks for the pull request 👍

However, these are mainly small nitpicks that don't provide much value overall, so I'm closing this. Thank you for your comprehension.