Fix positioning of the public page footer

Signed-off-by: Julius Härtl <jus@bitgrid.net>

core/css/public.css

@@ -49,7 +49,7 @@
   text-align: center;
 }
 #body-public footer {
-  position: sticky !important;
+  position: fixed;
   display: flex;
   align-items: center;
   justify-content: center;

core/css/public.scss

@@ -69,7 +69,7 @@ $footer-height: 65px;
 
 	/* public footer */
 	footer {
-		position: sticky !important;
+		position: fixed;
 		display: flex;
 		align-items: center;
 		justify-content: center;

core/css/server.css

@@ -4998,7 +4998,7 @@ kbd {
   text-align: center;
 }
 #body-public footer {
-  position: sticky !important;
+  position: fixed;
   display: flex;
   align-items: center;
   justify-content: center;