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/components/AccountList.tsx

@@ -37,7 +37,7 @@ export function AccountList({
       style={[
         a.rounded_md,
         a.overflow_hidden,
-        a.border,
+        {borderWidth: 1},
         t.atoms.border_contrast_low,
       ]}>
       {accounts.map(account => (
@@ -48,7 +48,7 @@ export function AccountList({
             isCurrentAccount={account.did === currentAccount?.did}
             isPendingAccount={account.did === pendingDid}
           />
-          <View style={[a.border_b, t.atoms.border_contrast_low]} />
+          <View style={[{borderBottomWidth: 1}, t.atoms.border_contrast_low]} />
         </React.Fragment>
       ))}
       <Button