[Feature request] "Copy username to clipboard" option from user info page

[ferlanero]

Description

"Copy username to clipboard" option from user info page would be very useful just to name quickly to a person inside a group/supergroup, etc

The option may appear when long pressing over username inside user info page.

With this simply option, you may avoid just to remember complicated usernames which users use and easily use them to name them on groups/supergroups.

[as1an]

Will it be better to use just a simple tap instead of a tap-and-hold?