ui: Improve vertical alignment of home page card headers

web/src/lib/components/pages/home/DomainGroupCard.svelte

@@ -44,7 +44,7 @@
 
 {#if $domains && $domains.length}
     <Card class="mb-3 ${className}">
-        <div class="card-header d-flex justify-content-between">
+        <div class="card-header d-flex justify-content-between align-items-center">
             {$t("domaingroups.title")}
             <Button
                 type="button"

web/src/lib/components/pages/home/ProviderListCard.svelte

@@ -49,7 +49,7 @@
 </script>
 
 <Card {...rest}>
-    <div class="card-header d-flex justify-content-between">
+    <div class="card-header d-flex justify-content-between align-items-center">
         {$t("provider.title")}
         {#if !$appConfig.disable_providers}
             <Button size="sm" color="light" href="/providers/new">