Fix feed title display in "normal" (not combined) mode

With grouped feeds enabled, the title is unnecessary. I guess, the VFEED-check was removed by accident in https://github.com/gothfox/Tiny-Tiny-RSS/commit/e17e99fbcf62f2e347ce771a795be3237521f6b5

Also, if the feeds title is to long, it could wrap into multiple lines. With nowrap it won't hurt the design.