refactor(router): show endpoint id in url (#3966)

* refactor(module): provide basic endpoint id url

* fix(stacks): fix route to include endpointId

* fix(stacks): fix stacks urls

* fix(sidebar): fix urls to docker routes

* refactor(app): set endpoint id on change view

* refactor(dashboard): revert to old version

* refactor(sidebar): revert file

* feat(app): wip load endpoint on route change

* feat(home): show error

* feat(app): load endpoint route

* feat(sidebar): show endpoint per provider

* refactor(app): revert

* refactor(app): clean endpoint startup

* feat(edge): check for edge k8s

* refactor(endpoints): move all modules under endpoint route

* refactor(stacks): move stacks route to docker

* refactor(templates): move templates route to docker

* refactor(app): check endpoint when entering docker module

* fix(app): load endpoint when entering endpoints modules

* feat(azure): check endpoint

* feat(kubernetes): check endpoint

* feat(home): show loading state when loading edge

* style(app): revert small changes

* refactor(sidebar): remove refernce to endpointId

* fix(stacks): fix stacks route

* style(docker): sort routes

* feat(app): change route to home if endpoint failed

* fix(services): guard against empty snapshots

* feat(app): show error when failed to load endpoint

* feat(app): reload home route when failing

* refactor(router): replace resolvers with onEnter

app/docker/interceptors/versionInterceptor.js

@@ -10,7 +10,7 @@ angular.module('portainer.app').factory('VersionInterceptor', [
     function responseErrorInterceptor(rejection) {
       if (rejection.status === 502 || rejection.status === 503 || rejection.status === -1) {
         var endpoint = EndpointProvider.currentEndpoint();
-        if (endpoint !== undefined) {
+        if (endpoint !== undefined && endpoint.Snapshots.length && endpoint.Snapshots[0].SnapshotRaw) {
           var data = endpoint.Snapshots[0].SnapshotRaw.Version;
           if (data !== undefined) {
             return data;