try-finally block for ptr

src/screens/Hashtag.tsx

@@ -195,8 +195,11 @@ function HashtagScreenTab({
 
   const onRefresh = React.useCallback(async () => {
     setIsPTR(true)
+    try {
       await refetch()
+    } finally {
       setIsPTR(false)
+    }
   }, [refetch])
 
   const onEndReached = React.useCallback(() => {

src/screens/Topic.tsx

@@ -160,8 +160,11 @@ function TopicScreenTab({
 
   const onRefresh = React.useCallback(async () => {
     setIsPTR(true)
+    try {
       await refetch()
+    } finally {
       setIsPTR(false)
+    }
   }, [refetch])
 
   const onEndReached = React.useCallback(() => {

src/view/screens/Profile.tsx

@@ -360,9 +360,12 @@ function ProfileScreenLoaded({
 
   const onRefresh = async () => {
     setIsRefreshing(true)
+    try {
       await postFeedRef.current?.refreshFeed()
+    } finally {
       setIsRefreshing(false)
     }
+  }
 
   // rendering
   // =