Add total result count and improved pager

Fixes #988: The package list shows the total number of packages found,
before paging.

Other changes:
- The package list subtitle now indicates which packages are currently
  displayed as well as the total number of results, e.g. "Showing 1 - 20
  of 228"
- The pager is only shown if there are more results than the page
  limit, i.e. if 27 results are returned an the page limit is 20
- The pager includes individual page links for up to 11 pages
- If more than 11 pages of results are returned, "First" and "Last"
  page links are shown
- The pager page list includes ellipses to indicate when their are more
  pages then the indivdual page links shown. I.e. if 15 pages of
  results are returned and the current page is page 1, then an list item
  containing an ellipsis is shown after the list item for page 11.

dashboard/src/client.ts

@@ -7,7 +7,6 @@ import { usePackageStore } from "./stores/package";
 export interface Client {
   package: api.PackageApi;
   storage: api.StorageApi;
-  upload: api.UploadApi;
   connectPackageMonitor: () => void;
 }
 
@@ -79,7 +78,6 @@ function createClient(): Client {
   return {
     package: new api.PackageApi(config),
     storage: new api.StorageApi(config),
-    upload: new api.UploadApi(config),
     connectPackageMonitor,
   };
 }