style(ui): simplify panels, remove borders and scrollbars, add padding, enable inline mode

television/cable/man-pages.toml

@@ -22,4 +22,4 @@ mode = "execute"
 
 [ui]
 layout = "portrait"
-preview_panel = { header = "{0}" }
+preview_panel = { header = "{0}", border_type = "none", scrollbar = false, padding = { left = 2, right = 1, top = 0, bottom = 0 } }