Change Modules titles heading level and update packages

src/components/organisms/NewsletterModule.svelte

@@ -14,9 +14,9 @@
 
 <div class="newsletter newsletter--{theme} shadow-box-dark">
     <div class="newsletter__wrapper">
-        <h3 class="title-medium">
+        <h2 class="title-medium">
             <label for="newsletter_email">{newsletter_subtitle}</label>
-        </h3>
+        </h2>
         <p class="text-small">{newsletter_text}</p>
 
         <EmailForm past={true} />

src/components/organisms/ShopModule.svelte

@@ -80,7 +80,7 @@
         </div>
 
         <div class="shop__content">
-            <h3 class="title-medium">{title}</h3>
+            <h2 class="title-medium">{title}</h2>
             <p class="text-small">{text}</p>
             {#if enabled}
                 <Button {url} text={buttonText} color="pinklight" />

src/style/organisms/_newsletter.scss

@@ -16,7 +16,7 @@
             grid-column: 4 / span var(--columns);
         }
 
-        h3 {
+        h2 {
             color: $color-secondary;
             margin-bottom: 8px;