Images now bordered

Images now have closed border;
Merge branch 'master' of https://github.com/shamil-nunhuck/textual-whisper
Merge pull request #1 from emsquared/master

Fix Wrapping, contrib by Textual/Michael M
inline-image border and padding

The inline image has been 'restored' to maintain style with other
elements.

This is a quick fix and warrants further investigation.
Amended copyright

Amended copyright information to indicate origins and resolved
dependencies.
Myself now uses appropriate colour

Myself sender and text uses appropriate colour when the message type is
an action.
Merge github.com:shamil-nunhuck/textual-whisper