Zoo rebrand (#1228)

* Add new logomarks

* Replace KittyCAD and KCMA with Zoo and ZMA anywhere it's safe

* fmt

* A snapshot a day keeps the bugs away! 📷🐛 (OS: ubuntu)

* Make README logo a PNG instead of an SVG

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Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

src/Auth.tsx

@@ -8,7 +8,7 @@ export const Auth = ({ children }: React.PropsWithChildren) => {
 
   return isLoggingIn ? (
     <Loading>
-      <span data-testid="initial-load">Loading KittyCAD Modeling App...</span>
+      <span data-testid="initial-load">Loading Modeling App...</span>
     </Loading>
   ) : (
     <>{children}</>