Remove the "halves" cover style again

Tried in macOS Terminal: it does not look good there either.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019reK4DUGYqDUjniWYJvwUW

README.md

@@ -19,9 +19,8 @@ A terminal UI to search for movies and series with [Radarr](https://radarr.video
   plain cells in macOS Terminal, sextants on terminals known to have the glyphs or when fontconfig
   finds an installed font with them (not over SSH), else quadrants), `kitty` (force real images),
   `sextant` (2x3 pixels per cell, needs a font with the Symbols for Legacy Computing block) or
-  `quadrant` (2x2, every font has them), `halves` (2x1, only the left and right half blocks) or
-  `cells` (one colored cell per pixel, no glyphs); the last two are for terminals whose block
-  characters come out uneven, like macOS Terminal. Inside tmux or screen the
+  `quadrant` (2x2, every font has them) or `cells` (one colored cell per pixel, no glyphs; for
+  terminals whose block characters come out uneven, like macOS Terminal). Inside tmux or screen the
   block styles are used. If a poster looks wrong, set `quadrant`, or `cells` if the rows look shifted.
 - **Calendar**: the next two weeks of movie releases (cinemas, digital, physical) and airing episodes
   in one list grouped by day, with poster and plot. Move by weeks, include unmonitored items, search