Add note to clarify "allow new messages from" setting (#4166)

src/screens/Messages/Settings.tsx

@@ -12,7 +12,7 @@ import {useSession} from '#/state/session'
 import * as Toast from '#/view/com/util/Toast'
 import {ViewHeader} from '#/view/com/util/ViewHeader'
 import {CenteredView} from '#/view/com/util/Views'
-import {atoms as a} from '#/alf'
+import {atoms as a, useTheme} from '#/alf'
 import {Divider} from '#/components/Divider'
 import * as Toggle from '#/components/forms/Toggle'
 import {Text} from '#/components/Typography'
@@ -23,6 +23,7 @@ type AllowIncoming = 'all' | 'none' | 'following'
 type Props = NativeStackScreenProps<CommonNavigatorParams, 'MessagesSettings'>
 export function MessagesSettingsScreen({}: Props) {
   const {_} = useLingui()
+  const t = useTheme()
   const {currentAccount} = useSession()
   const {data: profile} = useProfileQuery({
     did: currentAccount!.did,
@@ -58,10 +59,10 @@ export function MessagesSettingsScreen({}: Props) {
       <ViewHeader title={_(msg`Settings`)} showOnDesktop showBorder />
       <View style={[a.p_lg, a.gap_md]}>
         <Text style={[a.text_lg, a.font_bold]}>
-          <Trans>Allow messages from</Trans>
+          <Trans>Allow new messages from</Trans>
         </Text>
         <Toggle.Group
-          label={_(msg`Allow messages from`)}
+          label={_(msg`Allow new messages from`)}
           type="radio"
           values={[
             (profile?.associated?.chat?.allowIncoming as AllowIncoming) ??
@@ -98,9 +99,24 @@ export function MessagesSettingsScreen({}: Props) {
             </Toggle.Item>
           </View>
         </Toggle.Group>
+        <View
+          style={[
+            a.mt_sm,
+            a.px_xl,
+            a.py_lg,
+            a.rounded_md,
+            t.atoms.bg_contrast_25,
+          ]}>
+          <Text style={[t.atoms.text_contrast_high]}>
+            <Trans>
+              You can continue ongoing conversations regardless of which setting
+              you choose.
+            </Trans>
+          </Text>
+        </View>
         {isNative && (
           <>
-            <Divider />
+            <Divider style={a.my_md} />
             <Text style={[a.text_lg, a.font_bold]}>
               <Trans>Notification Sounds</Trans>
             </Text>