chore: style cleanup

src/pages/dynamic/books/index.html

@@ -8,7 +8,7 @@ schema: books
 ---
 {%- assign bookData = books.all | bookStatus: 'started' | reverse -%}
 {%- assign currentBookCount = books.all | currentBookCount -%}
-<h2 class="page-header">Currently reading</h2>
+<h2>Currently reading</h2>
 <p>Here's what I'm reading at the moment. I've finished <strong class="highlight-text">{{ currentBookCount }} books</strong> this year.</p>
 <p>{{ books.years | bookYearLinks }}</p>
 {% render "partials/blocks/banners/rss.liquid", url: "https://coryd.dev/feeds/books", text: "Subscribe to my books feed or follow along on this page" %}

src/pages/dynamic/books/year.html

@@ -14,7 +14,7 @@ schema: books-year
 {%- assign yearString = year.value | append: '' -%}
 {%- assign currentYearString = currentYear | append: '' -%}
 <a class="back-link-header link-icon" href="/books" title="Go back to the books index page">{% tablericon "arrow-left" "Go back to the books index page" %} Back to books</a>
-<h2 class="page-header">{{ year.value }} / Books</h2>
+<h2>{{ year.value }} / Books</h2>
 {% if yearString == currentYearString %}
 <p>I've finished <strong class="highlight-text">{{ bookData.size }} books</strong> this year.{%- if favoriteBooks %} Among my favorites are {{ favoriteBooks }}.{%- endif -%}</p>
 {% else %}