Revert "Every workspace split into real panes: 19 panes across 7 workspaces, one program per panel"

This reverts commit 32fa2752af.

tui/frame.go

@@ -289,28 +289,3 @@ func helpOverlay(title string, entries [][2]string, w, h int) string {
 	p := panel{title: title, width: boxW, height: boxH, focused: true}
 	return lipgloss.Place(w, h, lipgloss.Center, lipgloss.Center, p.render(lines))
 }
-
-// singlePanel draws one panel filling the whole pane: a title, optional tabs,
-// a scrolling body, and one line of keys. It is what a pane shows when a
-// workspace has been split into real panes instead of one program drawing
-// several panels inside itself.
-func singlePanel(title string, tabs []string, active int, body []string, w, h int, footer string, scroll int) string {
-	if w < 12 || h < 4 {
-		return fmt.Sprintf("this pane is %d × %d; it needs 12 × 4", w, h)
-	}
-	p := panel{title: title, tabs: tabs, active: active, width: w, height: h - 1, focused: true}
-	visible := p.bodyHeight()
-	maxScroll := max(0, len(body)-visible)
-	if scroll > maxScroll {
-		scroll = maxScroll
-	}
-	if scroll < 0 {
-		scroll = 0
-	}
-	from := scroll
-	to := min(len(body), from+visible)
-	if to < from {
-		to = from
-	}
-	return p.render(body[from:to]) + "\n" + truncateVisible(footer, w)
-}