Migrate avatars to Pajamas View Component

What does this MR do and why?

In the scope of Pajamas Migration Day migrates some avatars from &8818 (closed) to Pajamas Avatar ViewComponent

Closes #375094 (closed) #375095 (closed) #375081 (closed) #375089 (closed) #375091 (closed)

Screenshots or screen recordings

http://127.0.0.1:3000/flightjs/Flight/-/starrers

Page	Before	After	Comments
Starrers			Previous size was 40px - now 48px
Snippets			Previous size was 40px - now 48px
Profile page			Size is the same but on small screens the avatar floats left as on the bigger ones. Here is the screenshot of how the avatar used to be on a separate line
User's followers/following			Previous size was 40px - now 48px

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.