Add description in picture lightbox

[R-II]

Hello,

I needed to display the media description in the lightbox. It only works with pictures for now.
Sorry about the space and line ending changes.

Thanks for all your work ! Nanogallery 2 is awesome !

Raphaël

[Kris-B]

Hi Raphaël,
Many thanks for your contribution!
I'm not really sure to understand the purpose of your pull request.
Media descriptions can already be displayed in the lightbox, using the 'label' tool in one viewerTool or in the viewerToolbar. 'label' includes title and description.

[R-II]

Hi,

Technically, I needed a new layout, able to display a large amount of data.

The idea is that labeling in top of the lightbox is perfect for a small description, a title, but I needed a large area that has as much value as the picture, like an art description in a museum or a photo in a magazine. Half picture, half text. Responsible and scrollable.

[Kris-B]

@sevarg I'll integrate your PR, but with some modifications (and I need a little bit time...). Thanks for your understanding.

[ajmeese7]

@sevarg I'll integrate your PR, but with some modifications (and I need a little bit time...). Thanks for your understanding.

Bump, I'm looking for this same feature! Being able to display the text description alongside the image title is pretty important to my use case.

Do you need me to try to make any edits to this attempt in a new PR, or will you be able to take another look?