New revision of the Assistant Panel (#10870)

This is a crate only addition of a new version of the AssistantPanel.
We'll be putting this behind a feature flag while we iron out the new
experience.

Release Notes:

- N/A

---------

Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Conrad Irwin <conrad@zed.dev>
Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>
Co-authored-by: Antonio Scandurra <antonio@zed.dev>
Co-authored-by: Nate Butler <nate@zed.dev>
Co-authored-by: Nate Butler <iamnbutler@gmail.com>
Co-authored-by: Max Brunsfeld <maxbrunsfeld@gmail.com>
Co-authored-by: Max <max@zed.dev>

crates/recent_projects/src/remote_projects.rs

@@ -507,7 +507,7 @@ impl RemoteProjects {
                                         .my_1()
                                         .py_0p5()
                                         .px_3()
-                                        .font(ThemeSettings::get_global(cx).buffer_font.family.clone())
+                                        .font_family(ThemeSettings::get_global(cx).buffer_font.family.clone())
                                         .child(Label::new(instructions))
                                     )
                                     .when(status == DevServerStatus::Offline, |this| {