Update logo to support dark/light theme (#1538)

* Update logo.svg

* Update logo.svg

* Update README.md

* fix white space links between the badges

* Update logo.svg

README.md

@@ -1,18 +1,10 @@
-<p align="center"><img src="/art/logo.svg" alt="Logo Laravel Jetstream"></p>
+<p align="center"><img width="371" height="58" src="/art/logo.svg" alt="Logo Laravel Jetstream"></p>
 
 <p align="center">
-    <a href="https://github.com/laravel/jetstream/actions">
-        <img src="https://github.com/laravel/jetstream/workflows/tests/badge.svg" alt="Build Status">
-    </a>
-    <a href="https://packagist.org/packages/laravel/jetstream">
-        <img src="https://img.shields.io/packagist/dt/laravel/jetstream" alt="Total Downloads">
-    </a>
-    <a href="https://packagist.org/packages/laravel/jetstream">
-        <img src="https://img.shields.io/packagist/v/laravel/jetstream" alt="Latest Stable Version">
-    </a>
-    <a href="https://packagist.org/packages/laravel/jetstream">
-        <img src="https://img.shields.io/packagist/l/laravel/jetstream" alt="License">
-    </a>
+    <a href="https://github.com/laravel/jetstream/actions"><img src="https://github.com/laravel/jetstream/workflows/tests/badge.svg" alt="Build Status"></a>
+    <a href="https://packagist.org/packages/laravel/jetstream"><img src="https://img.shields.io/packagist/dt/laravel/jetstream" alt="Total Downloads"></a>
+    <a href="https://packagist.org/packages/laravel/jetstream"><img src="https://img.shields.io/packagist/v/laravel/jetstream" alt="Latest Stable Version"></a>
+    <a href="https://packagist.org/packages/laravel/jetstream"><img src="https://img.shields.io/packagist/l/laravel/jetstream" alt="License"></a>
 </p>
 
 ## Introduction