fix: correct HTML rendering in entry body and feed excerpts

- entry.html.twig: add |raw to page.content (autoescape: true in
  system.yaml was escaping all HTML output including rendered markdown)
- tracker.html.twig: use |striptags|slice(0,250) for clean plain-text
  excerpts instead of raw HTML summary
- Both templates: fix location display whitespace (Tokyo , Japan → Tokyo, Japan)
  using parts array pattern with Twig whitespace control

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

themes/intotheeast/templates/entry.html.twig

@@ -28,10 +28,10 @@
             </time>
             {% if page.header.location_city or page.header.location_country %}
             <p class="entry-location">
-                📍
-                {% if page.header.location_city %}{{ page.header.location_city }}{% endif %}
-                {% if page.header.location_city and page.header.location_country %}, {% endif %}
-                {% if page.header.location_country %}{{ page.header.location_country }}{% endif %}
+                {%- set _loc = [] -%}
+                {%- if page.header.location_city -%}{%- set _loc = _loc|merge([page.header.location_city]) -%}{%- endif -%}
+                {%- if page.header.location_country -%}{%- set _loc = _loc|merge([page.header.location_country]) -%}{%- endif -%}
+                📍 {{ _loc|join(', ') }}
             </p>
             {% endif %}
             {% if page.header.weather_desc or page.header.weather_temp_c %}
@@ -51,7 +51,7 @@
     </header>
 
     <div class="entry-body">
-        {{ page.content }}
+        {{ page.content|raw }}
     </div>
 
     {% set images = page.media.images %}