Slim video list grid view

[frankhale]

Need a way to swap from the regular video list to the slim video list grid. In master the new slim grid is hard coded and the regular one is not being used. This needs to be fixed.

[frankhale]

Commands have been added in e7ebb4e to swap between the default video list view and the slim grid view.

Here are the commands along with their shortcuts.

/grid-view, /gv
/default-view, /dv