chore: fix text color depending on dark/light mode in example app

Author: hsjoberg

example/Gemfile.lock

@@ -99,6 +99,7 @@ PLATFORMS
 DEPENDENCIES
   activesupport (>= 6.1.7.5, != 7.1.0)
   cocoapods (>= 1.13, != 1.15.1, != 1.15.0)
+  xcodeproj (< 1.26.0)
 
 RUBY VERSION
    ruby 2.6.10p210