CSS tweaking

* Removed the custom CSS thick-strikethough as can cause issues with wrapping and no longer really needed
* Reverted back to my original 'dimensions' for the poster view so that the new progress icons fit nicer(see note)
* Made tick sign on watched slightly more visible
* Re-added the original line-through
* Added a separate color for while a show is still adding
Update home-series.html

Added the 'adding' css class for while a show is adding
Update main.css
Update home-series.html

Added width and height limit to spinner.gif
Update main.css
Completely rewrote the torrent and watched view

Rewrote the way the code
Update main.css

Removed some un-needed CSS rules and add 2 new ones
.watchedtick for the width of the text so that it doesnt overlap the tick
.watchedpos for the position of the tick
Merge pull request #182 from Js41637/patch-2

Misc CSS and Design changes