fix kitty issues

internal/tui/layout/overlay.go

@@ -1,16 +1,15 @@
 package layout
 
 import (
-	"bytes"
 	"strings"
 
 	"github.com/charmbracelet/lipgloss"
-	"github.com/opencode-ai/opencode/internal/tui/styles"
-	"github.com/opencode-ai/opencode/internal/tui/util"
-	"github.com/mattn/go-runewidth"
+	chAnsi "github.com/charmbracelet/x/ansi"
 	"github.com/muesli/ansi"
 	"github.com/muesli/reflow/truncate"
 	"github.com/muesli/termenv"
+	"github.com/opencode-ai/opencode/internal/tui/styles"
+	"github.com/opencode-ai/opencode/internal/tui/util"
 )
 
 // Most of this code is borrowed from
@@ -117,42 +116,7 @@ func PlaceOverlay(
 // cutLeft cuts printable characters from the left.
 // This function is heavily based on muesli's ansi and truncate packages.
 func cutLeft(s string, cutWidth int) string {
-	var (
-		pos    int
-		isAnsi bool
-		ab     bytes.Buffer
-		b      bytes.Buffer
-	)
-	for _, c := range s {
-		var w int
-		if c == ansi.Marker || isAnsi {
-			isAnsi = true
-			ab.WriteRune(c)
-			if ansi.IsTerminator(c) {
-				isAnsi = false
-				if bytes.HasSuffix(ab.Bytes(), []byte("[0m")) {
-					ab.Reset()
-				}
-			}
-		} else {
-			w = runewidth.RuneWidth(c)
-		}
-
-		if pos >= cutWidth {
-			if b.Len() == 0 {
-				if ab.Len() > 0 {
-					b.Write(ab.Bytes())
-				}
-				if pos-cutWidth > 1 {
-					b.WriteByte(' ')
-					continue
-				}
-			}
-			b.WriteRune(c)
-		}
-		pos += w
-	}
-	return b.String()
+	return chAnsi.Cut(s, cutWidth, lipgloss.Width(s))
 }
 
 func max(a, b int) int {