Rearranged a lot of code, made the topic bar disappear when scrolling back.
Rearranged a lot of code, made the topic bar disappear when scrolling
back.

davewaxman/textual-theme-Equinox,dgw/textual-theme-Equinox,davewaxman/textual-theme-Equinox,dgw/textual-theme-Equinox,kenzierocks/textual-theme-Equinox,kenzierocks/textual-theme-Equinox,xlexi/textual-theme-Equinox,xlexi/textual-theme-Equinox