Presentation card redesign

[booski]

There has been a number of complaints that the current "card" view is cluttered and difficult to read.

We could add a second display option that uses a wider format along these lines (horrible ascii-art to emphasize it's just a concept):

+------------------------------------------------------------------------------+
|+-------------+   Title                                                  |   ||
||             |                                                          | S ||
||    thumb    |   Description,                                           | T ||
||             |   possibly multiple lines                                | U ||
||             |                                                          | F ||
|+-------------+   Tags, etc                                              | F ||
+------------------------------------------------------------------------------+

The STUFF part on the right would contain the buttons for editing, sharing etc that are currently only visible on hover.

[booski]

When implementing this, the old layout should be retained as an option.

The user should have the ability to switch layouts as needed, and the choice should be remembered between sessions.

[pavelsokolov]

Two new layouts were added; table and list. Implemented on all reasonable views (except Manage presentations, need to merge the blade templates first)

[pavelsokolov]

A user shouldn't jump to the top of the page when switching the layout (currently a simple redirect->back is used)

[pavelsokolov]

This was implemented.