chore: commit config drift from CMS usage

accounts/mischa.yaml: pagesViewMode set to tree via Admin UI
config/site.yaml: active_trip updated from demo to us-canada-mex-2024

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Vgmzx8VTTTmCskSpQtsLTr

accounts/mischa.yaml

@@ -13,6 +13,7 @@ admin_next:
     accentHue: 271
     accentSaturation: 91
     fontFamily: inter
+    pagesViewMode: tree
 access:
   admin:
     login: true

config/site.yaml

@@ -1,10 +1,9 @@
 title: 'Into the East'
-description: 'A travel blog by Mischa'
 author:
   name: Mischa
   email: mischa@gorinskat.nl
-taxonomies: [category, tag]
 metadata:
   description: 'Into the East — travel journal'
-active_trip: /trips/italy-2026-demo
+description: 'A travel blog by Mischa'
+active_trip: /trips/us-canada-mex-2024
 travelling: true