Fix double border on web hashtag list (#3091)

* add `topBorder` to Views.tsx

* fix double border

src/view/com/util/Views.d.ts

@@ -5,4 +5,6 @@ export function CenteredView({
   style,
   sideBorders,
   ...props
-}: React.PropsWithChildren<ViewProps & {sideBorders?: boolean}>)
+}: React.PropsWithChildren<
+  ViewProps & {sideBorders?: boolean; topBorder?: boolean}
+>)

src/view/com/util/Views.web.tsx

@@ -32,8 +32,11 @@ interface AddedProps {
 export function CenteredView({
   style,
   sideBorders,
+  topBorder,
   ...props
-}: React.PropsWithChildren<ViewProps & {sideBorders?: boolean}>) {
+}: React.PropsWithChildren<
+  ViewProps & {sideBorders?: boolean; topBorder?: boolean}
+>) {
   const pal = usePalette('default')
   const {isMobile} = useWebMediaQueries()
   if (!isMobile) {
@@ -46,6 +49,12 @@ export function CenteredView({
     })
     style = addStyle(style, pal.border)
   }
+  if (topBorder) {
+    style = addStyle(style, {
+      borderTopWidth: 1,
+    })
+    style = addStyle(style, pal.border)
+  }
   return <View style={style} {...props} />
 }