Rename InfoFlow to Daynivo: texts and boot splash logo

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_agent.py

@@ -101,7 +101,7 @@ def test_chromium_error_page_is_replaced(env):
 
 
 def test_running_page_is_left_alone_when_the_server_is_unreachable(env):
-    """Pages with their own offline cache (e.g. InfoFlow displays) must keep running."""
+    """Pages with their own offline cache (e.g. Daynivo displays) must keep running."""
     agent, browser, probe, clock, _ = env
     browser.url = "https://schermen-ijsselflat.voxip.nl"
     agent.tick()