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.
Blake Erickson
Guo Xiang Tan
Joffrey JAFFEUX
Maja Komel
Robin Ward
Neil Lalonde