Add named entities widget

[paltman]

As a user, I can see a list of named entities in the passage

[paltman]

As a user, I can select a named entity in the passage and update the named entities widget to see more detail

[paltman]

As a user, when I select a named entity occurrence in the text, all of the other occurrences are highlighted, and the selection in the widget is updated

[jacobwegner]

Again, due to a lagging bug with scaife-widgets, this is a good preview URL:

https://deploy-preview-10--explorehomer-dev.netlify.app/reader?urn=urn%3Acts%3AgreekLit%3Atlg0012.tlg001.perseus-grc2%3A1.1-1.7

[jacobwegner]

@paltman I've just updated develop with the latest scaife-widgets; if you pull those changes in, that should resolve the console error.

[paltman]

@jacobwegner I think this is ready for another review. I've addressed the two asks by @jtauber (I think I did them right) and cleaned up other UI issues I remember us talking about.

[jacobwegner]

@paltman thanks.

re: #1 above, the 'selection' green works great once you've selected an entity, but what about styling the unselected tokens when in named entity mode?

We style tokens that have references to named entities

(with the idea being that when in named entity mode, you can see where all of the entities are in the text at a glance, and then make selections to see more info in the widget).

[jacobwegner]

re #2 above, I don't think this has been resolved yet.

Below, when I select the last token on line 7 in "default" mode, the other named entity instances are also selected

[paltman]

@jacobwegner ok, ready for another review :)

[paltman]

Token styling improvements

[paltman]

Ensure consistent size for input fields

[paltman]

Ensure consistent typefaces