Fix ssg race condition (#3521)

* Fix server crash logging and opening fullstack apps

* Fix race condition during SSG

* move route prerendering into a separate stage

* Fix static site generation with dx serve

* only proxy the fullstack server if ssg is disabled

* test nested-suspense with ssg in playwright

packages/cli/src/serve/output.rs

@@ -482,6 +482,7 @@ impl Output {
                 lines.push(krate.as_str().dark_gray())
             }
             BuildStage::OptimizingWasm {} => lines.push("Optimizing wasm".yellow()),
+            BuildStage::PrerenderingRoutes {} => lines.push("Prerendering static routes".yellow()),
             BuildStage::RunningBindgen {} => lines.push("Running wasm-bindgen".yellow()),
             BuildStage::RunningGradle {} => lines.push("Running gradle assemble".yellow()),
             BuildStage::Bundling {} => lines.push("Bundling app".yellow()),