Move all crates to a top-level crates folder

Co-Authored-By: Max Brunsfeld <maxbrunsfeld@gmail.com>

crates/gpui/src/views.rs

@@ -0,0 +1,7 @@
+mod select;
+
+pub use select::{ItemType, Select, SelectStyle};
+
+pub fn init(cx: &mut super::MutableAppContext) {
+    select::init(cx);
+}