docs: switch blueprint help text line breaks from \n to <br>

Admin2 renders help as HTML so \n collapses; <br> is required.

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

themes/intotheeast/blueprints/trip.yaml

@@ -58,7 +58,7 @@ form:
             header.use_gpx:
               type: toggle
               label: Show GPX tracks
-              help: "Draws uploaded GPX files as route lines on the map.\nIndependent of connector lines — you can show GPX tracks without connectors or vice versa.\n\nNote: enable this when using Intelligent GPX connector mode, otherwise that mode falls back to connecting all markers."
+              help: "Draws uploaded GPX files as route lines on the map.<br>Independent of connector lines — you can show GPX tracks without connectors or vice versa.<br><br>Note: enable this when using Intelligent GPX connector mode, otherwise that mode falls back to connecting all markers."
               highlight: 1
               default: 1
               options:
@@ -70,7 +70,7 @@ form:
             header.autoconnect:
               type: select
               label: Connect markers
-              help: "On: draws a dashed line between every entry in date order.\nManual: no automatic lines — only entries with Force Connect are linked.\nIntelligent GPX: suppresses the connector where a GPX track already covers the route (requires Show GPX enabled); Force Connect still overrides.\nOff: no connector lines at all, Force Connect is also ignored."
+              help: "On: draws a dashed line between every entry in date order.<br>Manual: no automatic lines — only entries with Force Connect are linked.<br>Intelligent GPX: suppresses the connector where a GPX track already covers the route (requires Show GPX enabled); Force Connect still overrides.<br>Off: no connector lines at all, Force Connect is also ignored."
               default: 'on'
               options:
                 'on': 'On — always connect all'