Implement ]p (like p, but adjust the indent to current line)

[trkoch]

["x]]p		    or					*]p* *]<MiddleMouse>*
["x]]<MiddleMouse>	Like "p", but adjust the indent to the current line.
			Using the mouse only works when 'mouse' contains 'n'
			or 'a'.

["x][P		    or					*[P*
["x]]P		    or					*]P*
["x][p		    or					*[p* *[<MiddleMouse>*
["x][<MiddleMouse>	Like "P", but adjust the indent to the current line.
			Using the mouse only works when 'mouse' contains 'n'
			or 'a'.

https://neovim.io/doc/user/change.html#%5Dp