Further improve load order of RC and watchlist styling

This mainly addresses a regression in
I639a5ccbc3b7b2794e7b12ecb64e5ee6b10a640a, causing the bolding of
unread titles to be applied trough JS loading of the CSS.

Bug: 49610
Change-Id: I5cc20a342ebb566262e3aa1e9fe2cdf866a662c3
Merge "Further improve load order of RC and watchlist styling"