Remove duplicate heading, combine Nectar, Bloom and Clover, add Tropiiify

[martimpassos]

@mathewjordan and @adamjarling might want to take a look at how I described and where I placed Clover.

[martimpassos]

So should Clover appear twice in the list (as viewer and as presentation tool) or should I say in the viewer entry that it also encompasses other front-end utilities?

[mathewjordan]

Hi @martimpassos. Thank you for putting this in.

I understand that multiple lines might be out of sorts for this type of thing, however, the Viewer is just one component for Clover IIIF and I think does belong as its own line item as it is also incorporated into the IIIF Cookbook viewer matrix.

In the IIIF Viewers section, it could be, with the Viewer specific description and link to the Viewer component:

[Clover IIIF Viewer](https://samvera-labs.github.io/clover-iiif/docs/viewer) - Presentation API Manifest and Collection viewer handling Image, Sound, and Video canvases for React.js

Clover IIIF itself is a Presentation API component library or suite and I do think also belongs in the Presentation API Libraries section with the description you noted:

[Clover IIIF](https://samvera-labs.github.io/clover-iiif/) - IIIF front-end React toolkit including a multimedia viewer, image slider, and HTML5 primitives for manifest properties.

[mathewjordan]

@regisrob Might be able to give a final review of things.

[mathewjordan]

Thank you @caitlinPerry.