Pull app / OS info out of GPUI, add Linux information, make fallible window initialization (#12869)

TODO:
- [x] Finish GPUI changes on other operating systems 

This is a largely internal change to how we report data to our
diagnostics and telemetry. This PR also includes an update to our blade
backend which allows us to report errors in a more useful way when
failing to initialize blade.


Release Notes:

- N/A

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

crates/feedback/src/feedback_modal.rs

@@ -141,15 +141,15 @@ impl FeedbackModal {
                 return;
             }
 
+            let system_specs = SystemSpecs::new(cx);
             cx.spawn(|workspace, mut cx| async move {
                 let markdown = markdown.await.log_err();
                 let buffer = project.update(&mut cx, |project, cx| {
                     project.create_local_buffer("", markdown, cx)
                 })?;
+                let system_specs = system_specs.await;
 
                 workspace.update(&mut cx, |workspace, cx| {
-                    let system_specs = SystemSpecs::new(cx);
-
                     workspace.toggle_modal(cx, move |cx| {
                         FeedbackModal::new(system_specs, project, buffer, cx)
                     });