feat(pm/wiki): store more _pageData

We have an extension called Cargo which lets you query through pages.
As well as letting you add arbitrary data to select pages, you can also
have a table which is auto-filled with standard page data. By default,
the table doesn't store much info about each page. It might be nice for
querying if we had various other fields enabled!

packetmix/systems/teal/wiki.nix

···
 
       $wgRCWatchCategoryMembership = true;
 
+      $wgCargoPageDataColumns[] = 'creationDate';
+      $wgCargoPageDataColumns[] = 'modificationDate';
+      $wgCargoPageDataColumns[] = 'creator';
+      $wgCargoPageDataColumns[] = 'lastEditor';
+      $wgCargoPageDataColumns[] = 'displayTitle';
+      $wgCargoPageDataColumns[] = 'categories';
+      $wgCargoPageDataColumns[] = 'numRevisions';
+      $wgCargoPageDataColumns[] = 'outgoingLinks';
+      $wgCargoPageDataColumns[] = 'isRedirect';
+      $wgCargoPageDataColumns[] = 'pageNameOrRedirect';
+      $wgCargoPageDataColumns[] = 'pageIDOrRedirect';
+
+      $wgCargoFileDataColumns[] = 'mediaType';
+      $wgCargoFileDataColumns[] = 'path';
+      $wgCargoFileDataColumns[] = 'lastUploadDate';
+
+      $wgFixDoubleRedirects = true;
+
       $wgShowExceptionDetails = true;
       $wgDevelopmentWarnings = true;
     '';