Drop dependency on shared resources

[line-o]

The demo-apps application package still depends on the deprecated shared-resources resource package.

demo-apps/expath-pkg.xml.tmpl

Line 5 in dddfd3c

<dependency package="http://exist-db.org/apps/shared" semver-min="0.4.0"/>

For templating use the maintained library package templating v1.2.1
For frontend dependencies the same steps as were done for function-documentation, documentation and public-repo do apply.

The controller should also drop the route for shared resources entirely

demo-apps/controller.xql

Line 72 in dddfd3c

else if (contains($exist:path, "/$shared/")) then