New installed page
Splitting this out of #1111 (closed), for easier discussion. The task here is to implement the recent mockups from @bertob.
We also have #250 (closed), which is an old ticket from me which has some associated design work. I think the main difference in the designs is that my mockups use smaller icons and shorter rows, and there are sections for the types of software that are installed. The other thing to note from those mockups is that it would be good to try and keep the various lists we have consistent.
Edited by Philip Withnall