Fix rendering errors on enabling/resizing monitors

[Suyooo]

See issue #1338 - commit 0aa6202 introduced a problem with display changes, where root window Configure events would be ignored due to the new conditional, since the event comes from the root window itself. This is a small PR just moving that conditional, to make sure that root window events are always processed, and the filter only applies on other windows.

[absolutelynothelix]

clang-format -i src/event.c
git add src/event.c
git commit --amend --no-edit
git push --force

[Suyooo]

Thank you, fixed! Checks pass now

[yshui]

Nice catch! Thanks for the fix!