[Feature] Add Predict Pathway Page in Modern UI (#188)

## Major Changes
- Predict Pathway is now a separate view as it is meant as adavanced prediction interface

## Current status
![image.png](/attachments/c5bc3f5c-cf30-4b5f-acb3-a70117a96dae)

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#188
Co-authored-by: Tobias O <tobias.olenyi@envipath.com>
Co-committed-by: Tobias O <tobias.olenyi@envipath.com>

templates/actions/collections/pathway.html

@@ -1,6 +1,6 @@
 {% if meta.can_edit %}
     <li>
-        <a role="button" data-toggle="modal" data-target="#predict_modal">
+        <a href="{{ meta.server_url }}/predict">
             <span class="glyphicon glyphicon-plus"></span> New Pathway</a>
     </li>
-{% endif %}
+{% endif %}