Rename 'reshare' to 'boost' in templates and PO

For now it might be enough to only reword 'reshare' to 'boost' in the
frontend. The code can continue to use 'reshare'.

Includes the most recent German translation.

Fixes #74

templates/notifications/index.html.tera

@@ -52,7 +52,7 @@
                     <i class="fa fa-retweet left-icon"></i>
                     <main class="grow">
                         <h3>
-                            {{ "{{ user }} reshared your article." | _(user=notification.object.user.name | escape) }}
+                            {{ "{{ user }} boosted your article." | _(user=notification.object.user.name | escape) }}
                         </h3>
                         <p><a href="{{ notification.object.post.url }}">{{ notification.object.post.post.title }}</a></p>
                     </main>

templates/posts/details.html.tera

@@ -42,12 +42,12 @@
                     {% endif %}
                 </form>
                 <form class="reshares" action="{{ article.url }}reshare" method="POST">
-                    <p aria-label="{{ "{{ count }} reshares" | _n(singular="One reshare", count=n_reshares) }}" title="{{ "{{ count }} reshares" | _n(singular="One reshare", count=n_reshares) }}">{{ n_reshares }}</p>
+                    <p aria-label="{{ "{{ count }} Boosts" | _n(singular="One Boost", count=n_reshares) }}" title="{{ "{{ count }} Boosts" | _n(singular="One Boost", count=n_reshares) }}">{{ n_reshares }}</p>
 
                     {% if has_reshared %}
-                        <button type="submit" class="reshared"><i class="far fa-retweet"></i>{{ "I don't want to reshare this anymore" | _ }}</button>
+                        <button type="submit" class="reshared"><i class="far fa-retweet"></i>{{ "I don't want to boost this anymore" | _ }}</button>
                     {% else %}
-                        <button type="submit"><i class="fa fa-retweet"></i>{{ "Reshare" | _ }}</button>
+                        <button type="submit"><i class="fa fa-retweet"></i>{{ "Boost" | _ }}</button>
                     {% endif %}
                 </form>
             </div>

templates/users/details.html.tera

@@ -18,7 +18,7 @@
         {{ user.summary | safe }}
     </div>
 
-    {% if recents | length != 0 %}    
+    {% if recents | length != 0 %}
         <h2>{{ "Latest articles" | _ }}</h2>
         <div class="cards">
             {% for article in recents %}
@@ -28,7 +28,7 @@
     {% endif %}
 
     {% if reshares | length != 0 %}
-        <h2>{{ "Recently reshared" | _ }}</h2>
+        <h2>{{ "Recently boosted" | _ }}</h2>
         <div class="cards">
             {% for article in reshares %}
                 {{ macros::post_card(article=article) }}