refactor: adjust button sizes and padding for improved layout consistency

src/pages/00_notification/MainPage.vue

@@ -94,21 +94,21 @@ onMounted(async () => {
 <template>
   <main class="column full-height no-wrap">
     <div class="surface-1 col bordered rounded column">
-      <div class="q-px-lg q-py-xs row items-center">
+      <div class="q-py-xs row items-center" style="padding-inline: 38px">
         <q-checkbox
           size="xs"
           :model-value="selectedNoti.length === noti.length"
-          class="q-px-sm"
           @click="toggleSelection('', true)"
         />
+        <q-separator vertical inset spaced="md" />
         <q-btn
           v-if="selectedNoti.length === 0"
           icon="mdi-refresh"
           rounded
           flat
           dense
-          size="xs"
-          class="app-text-muted-2 q-ml-sm q-mt-xs"
+          size="sm"
+          class="app-text-muted-2 q-mt-xs"
           @click="async () => await fetchNoti()"
         >
           <q-tooltip>Refresh</q-tooltip>
@@ -119,8 +119,8 @@ onMounted(async () => {
           rounded
           flat
           dense
-          size="xs"
-          class="app-text-muted-2 q-ml-sm"
+          size="sm"
+          class="app-text-muted-2"
           @click="async () => await deleteNoti()"
         >
           <q-tooltip>{{ $t('general.delete') }}</q-tooltip>
@@ -131,7 +131,7 @@ onMounted(async () => {
           rounded
           flat
           dense
-          size="xs"
+          size="sm"
           class="app-text-muted-2 q-mx-sm"
           @click="async () => await markAsRead()"
         >