Update Playwright configuration and fix Select component

src/frontend/playwright.config.ts

@@ -18,7 +18,7 @@ export default defineConfig({
   /* Retry on CI only */
   retries: process.env.CI ? 2 : 0,
   /* Opt out of parallel tests on CI. */
-  workers: process.env.CI ? 1 : undefined,
+  workers: process.env.CI ? 2 : undefined,
   /* Reporter to use. See https://playwright.dev/docs/test-reporters */
   reporter: [
     ["html", { open: "never", outputFolder: "playwright-report/test-results" }],
@@ -44,10 +44,10 @@ export default defineConfig({
       use: { ...devices["Desktop Firefox"] },
     },
 
-    {
-      name: "webkit",
-      use: { ...devices["Desktop Safari"] },
-    },
+    // {
+    //   name: "webkit",
+    //   use: { ...devices["Desktop Safari"] },
+    // },
 
     /* Test against mobile viewports. */
     // {

src/frontend/src/pages/FlowPage/components/nodeToolbarComponent/index.tsx

@@ -189,7 +189,7 @@ export default function NodeToolbarComponent({
             </ShadTooltip>
           )}
 
-          <Select onValueChange={handleSelectChange}>
+          <Select onValueChange={handleSelectChange} value="">
             <ShadTooltip content="More" side="top">
               <SelectTrigger>
                 <div>