gui: init previewProcessBar with 0 on start

Tá an tiomantas seo le fáil i:
Albert S. 2022-05-29 10:41:14 +02:00
tuismitheoir 86cc16d15d
tiomantas b90ff840d9

Féach ar an gComhad

@ -356,7 +356,7 @@
<item>
<widget class="QProgressBar" name="previewProcessBar">
<property name="value">
<number>24</number>
<number>0</number>
</property>
</widget>
</item>