fix(Reminders): replace v-model:value with v-model on NcTextField

NcTextField in @nextcloud/vue v9 (Vue 3) binds via modelValue, not a
prop named `value`. Replace v-model:value="reminderDaysBefore" with
v-model="reminderDaysBefore" so the reminder days field is correctly
two-way bound.

Signed-off-by: Vitor Mattos <1079143+vitormattos@users.noreply.github.com>

Author: vitormattos

src/views/Settings/Reminders.vue

@@ -17,7 +17,7 @@
 				:size="20" />
 			<div v-if="reminderState">
 			{{ t('libresign', 'Next job execution: {date}', {date: nextRunFormatted}) }}
-			<NcTextField v-model:value="reminderDaysBefore"
+			<NcTextField v-model="reminderDaysBefore"
 				:label="t('libresign', 'First reminder after (days)')"
 				:placeholder="t('libresign', 'First reminder after (days)')"
 					type="number"