fix: unicode input in mini modes and palettes

closes: #81

src/tui/mode/mini/goto.zig

@@ -54,7 +54,7 @@ fn update_mini_mode_text(self: *Self) void {
             (fmt.bufPrint(&self.buf, "{d}", .{linenum}) catch "")
         else
             "";
-        mini_mode.cursor = mini_mode.text.len;
+        mini_mode.cursor = tui.current().stdplane().egc_chunk_width(mini_mode.text, 0, 8);
     }
 }