Change many border widths from 1 to hairlineWidth (#4294)

* feed items

* update some more

* moar

* profile card

* composer and notifications

* settings screen

* remove border from first item in feeds

* remove border from first item in feeds

* more removal of top border

* fix flatlist rendering

* oops

* scroll to top fab

* a.border

* centeredview/list

* placeholder

* web sidebar

* search posts

* feeds list

* user lists

* list header

* account list width 1

* hide top border feedgens

* same for lists

* fix tab bar web desktop

* wait...

* show the border on desktop web

* fix lists

* fix lists

* round

src/view/screens/Feeds.tsx

@@ -52,6 +52,7 @@ import {IconCircle} from '#/components/IconCircle'
 import {FilterTimeline_Stroke2_Corner0_Rounded as FilterTimeline} from '#/components/icons/FilterTimeline'
 import {ListMagnifyingGlass_Stroke2_Corner0_Rounded} from '#/components/icons/ListMagnifyingGlass'
 import {ListSparkle_Stroke2_Corner0_Rounded} from '#/components/icons/ListSparkle'
+import hairlineWidth = StyleSheet.hairlineWidth
 
 type Props = NativeStackScreenProps<FeedsTabNavigatorParams, 'Feeds'>
 
@@ -856,13 +857,13 @@ const styles = StyleSheet.create({
     paddingHorizontal: 16,
     paddingVertical: 14,
     gap: 12,
-    borderBottomWidth: 1,
+    borderBottomWidth: hairlineWidth,
   },
   savedFeedMobile: {
     paddingVertical: 10,
   },
   offlineSlug: {
-    borderWidth: 1,
+    borderWidth: hairlineWidth,
     borderRadius: 4,
     paddingHorizontal: 4,
     paddingVertical: 2,