fix: loader-splash size

src/custom.scss

@@ -21,9 +21,9 @@ html, body {
 }
 
 .loader-splash {
-  font-family: Arial, Helvetica, sans-serif; /* temporary workaround*/
-  height: 100%;
-  width: 100%;
+  font-family: Arial, Helvetica, sans-serif; /* temporary workaround for HSL 2.x */
+  height: 100vh;
+  width: 100vw;
   position: absolute;
   z-index: 1010;
   top: 0;