GUI: Add marquee 'Text Scroll' option (#363)

* GUI: Add marquee 'Text Scroll' option

- Adds the tiny `Text Scroll` option under `MNTM > Interface > General` to either use the standard scroll, or a new marquee style back and forth on any scrollable text.
- `elements_scrollable_text_line_centered` renamed to `elements_scrollable_text_line_ex` to be more general. Has `bool marquee`.

* Unnecessary switch here

* Apply setting internally

* Revert a few usages

* Update changelog

* Last thing

---------

Co-authored-by: Willy-JL <49810075+Willy-JL@users.noreply.github.com>

applications/services/gui/modules/menu.c

@@ -210,7 +210,7 @@ static void menu_draw_callback(Canvas* canvas, void* _model) {
                         canvas,
                         pos_x,
                         pos_y - height / 2 - 8,
-                        126,
+                        124,
                         name,
                         scroll_counter,
                         false,