FIX: website/guardian.lua: all patterns
FIX: website/guardian.lua: all patterns

* Remove stream interation (only one appears to be available now)
* Parse all media properties from the media page
* Remove unused Guardian.* functions
* Improve thumbnail URL parsing

Signed-off-by: Toni Gundogdu <eac2284b3c43676907b96f08de9d3d52d5df0361@gmail.com>

legatvs/libquvi-scripts,legatvs/libquvi-scripts,alech/libquvi-scripts,alech/libquvi-scripts