Inconsistent choice of language in the footer (#291)

* feat: translate footer to english

* feat: remove educational references

_includes/footer.html

@@ -3,10 +3,10 @@
         <div class="footer-col footer-col-25">
             <h5 class="footer-headline">enmeshed</h5>
             <p class="footer-content">
-                enmeshed ist eine Open Source Wallet, die einen Ende-zu-Ende verschlüsselten, digitalen Datenaustausch zwischen Bildungseinrichtungen und Lernenden sicherstellt.
+                enmeshed is an open source wallet that ensures end-to-end encrypted digital data exchange between organizations and individuals.
                 <br />
                 <br />
-                <small>enmeshed wurde von der j&s-soft AG entwickelt.</small>
+                <small>enmeshed was developed by j&s-soft AG.</small>
             </p>
             <div class="footer-socials">
                 <a class="footer-icon footer-social-icon footer-social-icon-twitter" href="https://twitter.com/enmeshed_jssoft" target="_blank">
@@ -21,7 +21,7 @@ <h5 class="footer-headline">enmeshed</h5>
             </div>
         </div>
         <div class="footer-col footer-col-25">
-            <h5 class="footer-headline">Kontakt</h5>
+            <h5 class="footer-headline">Contact</h5>
             <p class="footer-content">
                 j&s-soft AG
                 <br />
@@ -44,7 +44,7 @@ <h5 class="footer-headline">Kontakt</h5>
             </p>
         </div>
         <div class="footer-col footer-col-25">
-            <h5 class="footer-headline">Direkt zu</h5>
+            <h5 class="footer-headline">Quick Links</h5>
             <ul class="footer-menu">
                 {% if site.data.ui-text[site.locale].follow_label %}
                 <li><strong>{{ site.data.ui-text[site.locale].follow_label }}</strong></li>
@@ -56,7 +56,7 @@ <h5 class="footer-headline">Direkt zu</h5>
             </ul>
         </div>
         <div class="footer-col footer-col-25">
-            <h5 class="footer-headline">App Downloaden</h5>
+            <h5 class="footer-headline">Download the App</h5>
             <p class="footer-downloads footer-content">
                 <a href="https://apps.apple.com/de/app/enmeshed/id1576693742" target="_blank">
                     <img src="/assets/images/appstore.svg" class="logo-app logo-app__appstore" />

index.md

@@ -9,7 +9,7 @@ header:
     - label: "Get Started"
       url: "/use"
   caption: "Photo credit: [**Unsplash**](https://unsplash.com)"
-excerpt: "Secure education in a digital world"
+excerpt: "Secure data exchange in a digital world"
 feature_row:
   - image_path: /assets/images/use.jpg
     alt: "placeholder image 1"