fix: make asset link relative

Author: mstimberg

index.html

@@ -18,7 +18,7 @@
         <nav class="navbar navbar-expand-lg bg-body-tertiary">
             <div class="container-fluid">
                 <a class="navbar-brand" href="/">
-                    <img src="/assets/home.svg" alt="Simselect" height="24" class="d-inline-block align-text-top"/>
+                    <img src="assets/home.svg" alt="Simselect" height="24" class="d-inline-block align-text-top"/>
                     Simselect
                 </a>
                 <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">