Added some logos up in this (#40)

lib/pinchflat_web/components/layouts/onboarding.html.heex

@@ -2,8 +2,9 @@
   <div class="relative flex flex-1 flex-col overflow-y-auto overflow-x-hidden">
     <header class="sticky top-0 z-999 flex w-full bg-white drop-shadow-1 dark:bg-boxdark dark:drop-shadow-none">
       <div class="flex flex-grow items-center px-4 py-4 shadow-2 md:px-6 2xl:px-11">
-        <div class="flex items-center gap-2 sm:gap-4">
-          <h2 class="text-title-md2 font-bold text-white">Pinchflat</h2>
+        <div class="flex items-center">
+          <img src={~p"/images/logo.png?cachebust=2024-02-29"} alt="Pinchflat" class="w-9 h-9" />
+          <h2 class="text-xl font-bold text-white pl-2">Pinchflat</h2>
         </div>
       </div>
     </header>