onboarding: Add the AI page (#35351)

This PR starts the work on the AI onboarding page as well as the
configuration modal

Release Notes:

- N/A

---------

Co-authored-by: Danilo Leal <daniloleal09@gmail.com>
Co-authored-by: Anthony <anthony@zed.dev>

crates/onboarding/src/editing_page.rs

@@ -349,7 +349,7 @@ fn render_popular_settings_section(window: &mut Window, cx: &mut App) -> impl In
         .child(SwitchField::new(
             "onboarding-enable-inlay-hints",
             "Inlay Hints",
-            "See parameter names for function and method calls inline.",
+            Some("See parameter names for function and method calls inline.".into()),
             if read_inlay_hints(cx) {
                 ui::ToggleState::Selected
             } else {
@@ -362,7 +362,7 @@ fn render_popular_settings_section(window: &mut Window, cx: &mut App) -> impl In
         .child(SwitchField::new(
             "onboarding-git-blame-switch",
             "Git Blame",
-            "See who committed each line on a given file.",
+            Some("See who committed each line on a given file.".into()),
             if read_git_blame(cx) {
                 ui::ToggleState::Selected
             } else {