Fix typo in AccountPreferences.tsx

Change-Id: I8f6008c1bf00450e0fee02fe79c213283c5087cc
diff --git a/client/src/components/AccountPreferences.tsx b/client/src/components/AccountPreferences.tsx
index 3a63ee7..6788535 100644
--- a/client/src/components/AccountPreferences.tsx
+++ b/client/src/components/AccountPreferences.tsx
@@ -187,7 +187,7 @@
             <ListItemIcon>
               <PhoneCallbackRounded />
             </ListItemIcon>
-            <ListItemText id="switch-list-label-publicin" primary="Allow connection from unkown peers" />
+            <ListItemText id="switch-list-label-publicin" primary="Allow connection from unknown peers" />
             <ListItemSecondaryAction>
               <Switch
                 edge="end"