Migrate svg_icon middleware to return web component

[anselmbradford]

Changes

• Migrate svg_icon middleware to return web component.

How to test this PR

1. yarn build and places where the icon appears should look the same as the production site.

In particular:

• Follow the directions in SVG icons as a button in the Draftail rich text editor #8488 and see that you can still add an icon in Wagtail.

• Visit http://localhost:8000/paying-for-college/your-financial-path-to-graduation/ and see that the tooltips still have icons.

• Icons are correct on http://localhost:8000/consumer-tools/educator-tools/youth-financial-education/teach/activities/

• Spinning update icon, and show/hide map icon on http://localhost:8000/rural-or-underserved-tool/

[wpears]

I notice that the icons in grad path seem to be ~4px lower than on prod. Is that intentional/known?

[anselmbradford]

I notice that the icons in grad path seem to be ~4px lower than on prod. Is that intentional/known?

Hmm which icons? I didn't see a 4px offset, but I did notice I needed to add temporary styles for the wc icon inside the non-wc form alert, which can be removed if/when the alert is moved to a wc. 57df3f1

[wpears]

Hmm which icons?

Huh, I retested and this is gone, maybe I hadn't hard refreshed. Sorry for the noise!

[wpears]

I will note, though, that on http://localhost:8000/rural-or-underserved-tool/ if you show / hide the map, after once cycle "show map" no longer gets the + icon.

[anselmbradford]

I will note, though, that on http://localhost:8000/rural-or-underserved-tool/ if you show / hide the map, after once cycle "show map" no longer gets the + icon.

Fixed in ade7a8b

I noticed that the show/hide toggle link has a no-decoration class that isn't applying presently. I left that the way it is, but the original design looks like it shouldn't have an underline. That whole toggle should be refactored to be a button.

[anselmbradford]

Pushed up a little change in b971470 because I realized you can click in the gap between the text and icon and throw things off.

[anselmbradford]

Heading out on OOO. Feel free to merge this in if the bewds are good with the backend changes ✌️ 🇺🇸 ✌️