Fix style of warning for EoL version

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

apps/updatenotification/src/components/root.vue

@@ -4,7 +4,7 @@
 			<template v-if="isNewVersionAvailable">
 				<p v-if="versionIsEol">
 					<span class="warning">
-						<span class="icon icon-error"></span>
+						<span class="icon icon-error-white"></span>
 						{{ t('updatenotification', 'The version you are running is not maintained anymore. Please make sure to update to a supported version as soon as possible.') }}
 					</span>
 				</p>
@@ -380,9 +380,6 @@
 				font-weight: normal;
 			}
 		}
-		.warning {
-			color: var(--color-error);
-		}
 		.whatsNew {
 			display: inline-block;
 		}