add vertical option to prompt, change copy

src/view/com/composer/Composer.tsx

@@ -886,8 +886,12 @@ export const ComposePost = ({
           {!IS_WEBFooterSticky && footer}
         </View>
 
-        <Prompt.Outer control={discardPromptControl}>
-          <Prompt.TitleText>{_(msg`Discard draft?`)}</Prompt.TitleText>
+        <Prompt.Outer
+          control={discardPromptControl}
+          webOptions={{vertical: true}}>
+          <Prompt.TitleText>
+            <Trans>Save draft?</Trans>{' '}
+          </Prompt.TitleText>
           <Prompt.DescriptionText>
             {_(msg`You can save this draft to continue later.`)}
           </Prompt.DescriptionText>
@@ -900,7 +904,7 @@ export const ComposePost = ({
             <Prompt.Action
               cta={_(msg`Discard`)}
               onPress={onClose}
-              color="negative"
+              color="negative_subtle"
             />
             <Prompt.Cancel />
           </Prompt.Actions>

src/view/com/composer/drafts/DraftsButton.tsx

@@ -67,7 +67,7 @@ export function DraftsButton({
         onSelectDraft={onSelectDraft}
       />
 
-      <Prompt.Outer control={savePromptControl}>
+      <Prompt.Outer control={savePromptControl} webOptions={{vertical: true}}>
         <Prompt.TitleText>
           <Trans>Save current draft?</Trans>
         </Prompt.TitleText>
@@ -86,7 +86,7 @@ export function DraftsButton({
           <Prompt.Action
             cta={_(msg`Discard`)}
             onPress={handleDiscardAndOpen}
-            color="negative"
+            color="negative_subtle"
           />
           <Prompt.Cancel />
         </Prompt.Actions>