Fix wrong favicon, apple-touch-icon & icon hrefs (#3433)

Fixes #3431.
Regression from #3350

Signed-off-by: Florian Hotze <[email protected]>

Author: florian-h05

bundles/org.openhab.ui/web/index.html

@@ -39,21 +39,21 @@
     <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
     <link
       rel="apple-touch-icon"
-      href="@/res/icons/apple-touch-icon.png"
+      href="/res/icons/apple-touch-icon.png"
       type="image/png"
       sizes="180x180"
       crossorigin="use-credentials"
     />
     <link
       rel="icon"
-      href="@/res/icons/favicon.svg"
+      href="/res/icons/favicon.svg"
       type="image/svg+xml"
       sizes="any"
       crossorigin="use-credentials"
     />
     <link
       rel="icon"
-      href="@/res/icons/128x128.png"
+      href="/res/icons/128x128.png"
       type="image/png"
       sizes="128x128"
       crossorigin="use-credentials"