First Issues / Improvements detected in Beta (#36)

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#36

templates/errors/error.html

@@ -3,10 +3,10 @@
 {% block content %}
 
     <div class="alert alert-danger" role="alert">
-        <h4 class="alert-heading">Something went wrong!</h4>
-        <p>An unexpected Error occurred...</p>
+        <h4 class="alert-heading">{{ error_message }}</h4>
         <hr>
         <p class="mb-0">
+            {{ error_detail }}<br>
             The error was logged and will be investigated.
         </p>
     </div>