Add button to re-import Harvest cache time entry from API

tailbone_harvest/templates/harvest/time-entries/view.mako

@@ -0,0 +1,45 @@
+## -*- coding: utf-8; -*-
+<%inherit file="/master/view.mako" />
+
+<%def name="object_helpers()">
+  ${parent.object_helpers()}
+  ${self.render_import_helper()}
+</%def>
+
+<%def name="render_import_helper()">
+  % if master.has_perm('import_from_harvest'):
+      <nav class="panel">
+        <p class="panel-heading">Re-Import</p>
+        <div class="panel-block buttons">
+          <div style="display: flex; flex-direction: column;">
+            % if master.has_perm('import_from_harvest'):
+                ${h.form(master.get_action_url('import_from_harvest', instance), **{'@submit': 'importFromHarvestSubmitting = true'})}
+                ${h.csrf_token(request)}
+                <b-button type="is-primary"
+                          native-type="submit"
+                          icon-pack="fas"
+                          icon-left="redo"
+                          :disabled="importFromHarvestSubmitting">
+                  {{ importFromHarvestSubmitting ? "Working, please wait..." : "Re-Import from Harvest" }}
+                </b-button>
+                ${h.end_form()}
+            % endif
+          </div>
+        </div>
+      </nav>
+  % endif
+</%def>
+
+<%def name="modify_this_page_vars()">
+  ${parent.modify_this_page_vars()}
+  % if master.has_perm('import_from_harvest'):
+      <script type="text/javascript">
+
+        ThisPageData.importFromHarvestSubmitting = false
+
+      </script>
+  % endif
+</%def>
+
+
+${parent.body()}