dashboard: Add fragment with links to some misc external apps

dashboard/dashboard.py

@@ -0,0 +1,42 @@
+import dashboard
+from dashboard import Link
+from membershipworks.models import Member
+from paperwork.models import Department
+
+
+@dashboard.register
+class ExternalAppsDashboardFragment(dashboard.LinksCardDashboardFragment):
+    name = "External Applications"
+
+    @property
+    def links(self):
+        links = [
+            Link(
+                "Wiki",
+                "https://wiki.claremontmakerspace.org",
+                tooltip="Uses CMS Network Computing account",
+                permission=None,
+            ),
+            Link(
+                "Mailman",
+                "http://mailman.claremontmakerspace.org",
+                tooltip="Mailing list management. Uses its own authentication, for now",
+                permission=None,
+            ),
+        ]
+
+        member = Member.from_user(self.request.user)
+        if (
+            member is not None
+            and Department.objects.filter(shop_lead_flag__members=member).exists()
+        ):
+            links.append(
+                Link(
+                    "Ticketing System",
+                    "https://tickets.claremontmakerspace.org/scp/",
+                    tooltip="Uses CMS Network Computing account",
+                    permission=None,
+                )
+            )
+
+        return links