Fix typo on theme settings page (#2312)

shared/includes/settings.html

@@ -72,7 +72,7 @@
 				<div class="mb-4">
 					<label class="form-label">Corner Radius</label>
 					<p class="form-hint">
-						Choose the border radius factory for your app.
+						Choose the border radius factor for your app.
 					</p>
 
 					<div>