I could not replicate the failure locally, but it was consistently
failing on CI with:
```
Assertion Failed: it should escape watched words
Expected: <img src="x">, Actual: <img src="x">
```
This commit removes an extra space that was added originally, but I
don't think it is really needed after double checking how it displays in
the UI. The `x` icon and the word have sufficient spacing between them.
If we need to we can tweak it in css instead.
This is another refactoring in the multi-step process to remove all uses
of our custom Render Buffer.
Previous commit: 2673cad142 in this
series.
This commit affects the display of watched words on the admin watched
word page. It is just a refactor and does not change any functionality.
Blake Erickson