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/composer/Composer.tsx

@@ -90,6 +90,7 @@ import {SuggestedLanguage} from './select-language/SuggestedLanguage'
 import {TextInput, TextInputRef} from './text-input/TextInput'
 import {ThreadgateBtn} from './threadgate/ThreadgateBtn'
 import {useExternalLinkFetch} from './useExternalLinkFetch'
+import hairlineWidth = StyleSheet.hairlineWidth
 
 type CancelRef = {
   onPressCancel: () => void
@@ -657,7 +658,7 @@ const styles = StyleSheet.create({
     marginBottom: 6,
   },
   errorIcon: {
-    borderWidth: 1,
+    borderWidth: hairlineWidth,
     borderColor: colors.red4,
     color: colors.red4,
     borderRadius: 30,
@@ -692,6 +693,6 @@ const styles = StyleSheet.create({
     paddingLeft: 15,
     paddingRight: 20,
     alignItems: 'center',
-    borderTopWidth: 1,
+    borderTopWidth: hairlineWidth,
   },
 })