bind: forward-word to go to end of line again

Fixes bbb2f0de8d (feat(vi-mode): make word movements vi-compliant,
2026-01-10)

Closes #12314

src/reader/reader.rs

@@ -3608,7 +3608,7 @@ fn handle_readline_command(&mut self, c: ReadlineCmd) {
                     );
                     if !is_kill {
                         let (_elt, el) = self.active_edit_line_mut();
-                        if el.position() + 1 < el.len() {
+                        if el.position() < el.len() {
                             el.set_position(el.position() + 1);
                         }
                     }