fix(app): preserve persisted theme styles after startup

Module-level style composites could materialize the temporary adaptive theme before persisted settings loaded. Keep Unistyles reads in render and guard against eager module-scope access.

packages/app/src/composer/index.tsx

@@ -570,7 +570,7 @@ function QueuedMessageRow({
         </Pressable>
         <Pressable
           onPress={handleSendNow}
-          style={QUEUE_SEND_BUTTON_STYLE}
+          style={[styles.queueActionButton, styles.queueSendButton]}
           accessibilityLabel={sendNowLabel}
           accessibilityRole="button"
         >
@@ -2237,8 +2237,6 @@ const styles = StyleSheet.create((theme: Theme) => ({
   },
 })) as unknown as Record<string, object>;
 
-const QUEUE_SEND_BUTTON_STYLE = [styles.queueActionButton, styles.queueSendButton];
-
 const ThemedPencil = withUnistyles(Pencil);
 const ThemedArrowUp = withUnistyles(ArrowUp);
 const ThemedGitPullRequest = withUnistyles(GitPullRequest);