Added alternative view setting

[samblooms]

This adds a device setting that will act similarly to the 'Alternative Bookshelf View' toggle on the web version. A toggle switch added to the settings page will change the shelf color, shelf background, and text color on the labels to match the alternate style.

• Changing the label style on the series page ( LazySeriesCard.vue ) is buggy.
  Using the same 'v-bind:class' and a method to return either 'shinyBlack' or 'altBookshelfLabel' breaks the loading of series.

[advplyr]

The alternate bookshelf view in the web app shows the title/author under the LazyBookCard

I think we should implement it this way and use the regular bg instead of importing the texture. What to you think?
I'm going to push some commits here

[advplyr]

I made everything look like the web app except I kept in your altBookshelfLabel for series and collections pages. I think it looks nice thanks for contributing.

[samblooms]

Wow. I totally overlooked that bit with the title/author. It was kind of a spur of the moment "change the look" type deal at first.
That's definitely a more elegant solution.