chore: TextBox -> Adapted<TextBox> (cce-ui Phase 5q migration)

Mechanical sweep for the migrated cce-ui TextBox: field/param types wrap
in Adapted<TextBox>, raw casts become .as_ptr_mut(), UFCS TextBox::focus
becomes Element::focus.

Co-Authored-By: Claude Fable 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_011vTEhEwTGYYhHRbh658SAc

 src/main.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 994a56f..044ddda 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -308,12 +308,12 @@ struct LayoutApp {
     margin_y: f32,
     toggle_word_processor: cce_ui::widget::Adapted<Toggle>,
     word_processor_enabled: bool,
-    wp_text_box: TextBox,
+    wp_text_box: cce_ui::widget::Adapted<TextBox>,
     sidebar_x: cce_ui::widget::Adapted<cce_ui::widget::Spinbox>,
     sidebar_y: cce_ui::widget::Adapted<cce_ui::widget::Spinbox>,
     sidebar_w: cce_ui::widget::Adapted<cce_ui::widget::Spinbox>,
     sidebar_h: cce_ui::widget::Adapted<cce_ui::widget::Spinbox>,
-    sidebar_text: TextBox,
+    sidebar_text: cce_ui::widget::Adapted<TextBox>,
     sidebar_size: cce_ui::widget::Adapted<cce_ui::widget::Spinbox>,
     font_selector: FontSelector,
     dropdown_text_align_h: cce_ui::widget::Adapted<Dropdown>,