Update skyvern UI responsiveness (#1098)

Co-authored-by: Muhammed Salih Altun <muhammedsalihaltun@gmail.com>

skyvern-frontend/src/routes/tasks/create/CreateNewTaskLayout.tsx

@@ -2,7 +2,7 @@ import { Outlet } from "react-router-dom";
 
 function CreateNewTaskLayout() {
   return (
-    <main className="container mx-auto px-8">
+    <main className="container mx-auto">
       <Outlet />
     </main>
   );

skyvern-frontend/src/routes/tasks/create/PromptBox.tsx

@@ -149,7 +149,7 @@ function PromptBox() {
           <span className="text-2xl">
             What task would you like to accomplish?
           </span>
-          <div className="flex w-[35rem] max-w-xl items-center rounded-xl bg-slate-700 py-2 pr-4">
+          <div className="flex w-1/2 max-w-xl items-center rounded-xl bg-slate-700 py-2 pr-4">
             <Textarea
               className="min-h-0 resize-none rounded-xl border-transparent px-4 hover:border-transparent focus-visible:ring-0"
               value={prompt}