fix(i18n): Corrected plural for multi. plural languages

Reported at Transifex.
https://app.transifex.com/nextcloud/nextcloud-upload-library/translate/#de_DE/16314f783b1fbd5880d265a6aa82c3d7/488853442

Signed-off-by: rakekniven <2069590+rakekniven@users.noreply.github.com>

Author: rakekniven

lib/components/ConflictPicker.vue

@@ -194,7 +194,7 @@ export default defineComponent({
 		},
 
 		skipButtonLabel() {
-			return n('Skip this file', 'Skip {count} files', this.conflicts.length, { count: this.conflicts.length })
+			return n('Skip {count} file', 'Skip {count} files', this.conflicts.length, { count: this.conflicts.length })
 		},
 
 		// Select all incoming files