Enhancer for Startpage di Nils

<strong>Features</strong>
<ul>
<li>Adds favicons to Startpage search results.</li>
<li>Applies a custom theme to Startpage.</li>
<li>Centers search results on Startpage.</li>
<li>Dynamically updates tab titles.</li>
<li>Makes Startpage the default search engine.</li>
</ul>

<i>Some elements may be hidden or look contorted.</i>