fix: correct redirects for package actions & requests

For requests, we always pass a `next` of /requests, leading us
back to the requests page. For a standard package, we get redirected
to the involved pkgbase, or target pkgbase if a merge action was taken.

Signed-off-by: Kevin Morris <kevr@0cost.org>

templates/partials/packages/actions.html

@@ -102,13 +102,13 @@
                 </li>
             {% endif %}
             <li>
-                <a href="/pkgbase/{{ pkgbase.Name }}/request">
+                <a href="/pkgbase/{{ pkgbase.Name }}/request?{{ {'next': '/pkgbase/%s' | format(pkgbase.Name)} | urlencode }}">
                     {{ "Submit Request" | tr }}
                 </a>
             </li>
             {% if request.user.has_credential(creds.PKGBASE_DELETE) %}
                 <li>
-                    <a href="/pkgbase/{{ pkgbase.Name }}/delete">
+                    <a href="/pkgbase/{{ pkgbase.Name }}/delete?next=/packages">
                         {{ "Delete Package" | tr }}
                     </a>
                 </li>
@@ -131,7 +131,7 @@
                 </li>
             {% elif request.user.has_credential(creds.PKGBASE_DISOWN, approved=[pkgbase.Maintainer]) %}
                 <li>
-                    <a href="/pkgbase/{{ pkgbase.Name }}/disown">
+                    <a href="/pkgbase/{{ pkgbase.Name }}/disown?{{ {'next': '/pkgbase/%s' | format(pkgbase.Name)} | urlencode }}">
                         {{ "Disown Package" | tr }}
                     </a>
                 </li>

templates/pkgbase/delete.html

@@ -45,6 +45,7 @@
 
         <form action="/pkgbase/{{ pkgbase.Name }}/delete" method="post">
             <fieldset>
+                <input type="hidden" name="next" value="{{ next }}" />
 
                 <p>
                     <label for="id_comments">{{ "Comments" | tr }}:</label>

templates/pkgbase/disown.html

@@ -45,6 +45,8 @@
 
         <form action="/pkgbase/{{ pkgbase.Name }}/disown" method="post">
             <fieldset>
+                <input type="hidden" name="next" value="{{ next }}" />
+
                 <p>
                     <label for="id_comments">{{ "Comments" | tr }}:</label>
                     <textarea id="id_comments"

templates/pkgbase/request.html

@@ -27,6 +27,8 @@
         <form id="request-form" action="/pkgbase/{{ pkgbase.Name }}/request"
               method="post">
             <fieldset>
+                <input type="hidden" name="next" value="{{ next }}" />
+
                 <p>
                     <label for="id_type">{{ "Request type" | tr }}:</label>
                     <select id="id_type" name="type">