fix: add optional target attr for GridAction

src/wuttaweb/grids/base.py

@@ -2280,6 +2280,10 @@ class GridAction:
 
        See also :meth:`get_url()`.
 
+    .. attribute:: target
+
+       Optional ``target`` attribute for the ``<a>`` tag.
+
     .. attribute:: icon
 
        Name of icon to be shown for the action link.
@@ -2297,6 +2301,7 @@ class GridAction:
             key,
             label=None,
             url=None,
+            target=None,
             icon=None,
             link_class=None,
     ):
@@ -2305,6 +2310,7 @@ class GridAction:
         self.app = self.config.get_app()
         self.key = key
         self.url = url
+        self.target = target
         self.label = label or self.app.make_title(key)
         self.icon = icon or key
         self.link_class = link_class or ''

src/wuttaweb/templates/grids/vue_template.mako

@@ -180,6 +180,9 @@
             % for action in grid.actions:
                 <a v-if="props.row._action_url_${action.key}"
                    :href="props.row._action_url_${action.key}"
+                   % if action.target:
+                       target="${action.target}"
+                   % endif
                    class="${action.link_class}">
                   ${action.render_icon_and_label()}
                 </a>