qml: major player control layout overhaul, revert imperative approach

Revert !3385 (merged), implement the functionality with RowLayout with declarative approach. Old code has not been maintained anymore due to absence of the author, see issues: #28205 (closed), #28202 (closed), #28206 (closed), #28203 (closed), #28204 (closed)

Also, properly supports changing height. The height can be anything, which is not used for now.

Request review @chub.

Close #28205 (closed) #28202 (closed) #28206 (closed) #28203 (closed) #28204 (closed)