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/com/util/load-latest/LoadLatestBtn.tsx

@@ -13,6 +13,7 @@ import {clamp} from '#/lib/numbers'
 import {colors} from '#/lib/styles'
 import {isWeb} from '#/platform/detection'
 import {useSession} from '#/state/session'
+import hairlineWidth = StyleSheet.hairlineWidth
 
 const AnimatedTouchableOpacity =
   Animated.createAnimatedComponent(TouchableOpacity)
@@ -73,7 +74,7 @@ const styles = StyleSheet.create({
     // @ts-ignore 'fixed' is web only -prf
     position: isWeb ? 'fixed' : 'absolute',
     left: 18,
-    borderWidth: 1,
+    borderWidth: hairlineWidth,
     width: 52,
     height: 52,
     borderRadius: 26,