Fix implicit injection deprecation

See https://deprecations.emberjs.com/v3.x/#toc_implicit-injections

Author: simonihmig

app/routes/community/meetups/index.js

@@ -1,6 +1,9 @@
 import Route from '@ember/routing/route';
+import { inject as service } from '@ember/service';
 
 export default class CommunityMeetupsIndexRoute extends Route {
+  @service store;
+
   model() {
     return this.store.findAll('meetup');
   }

app/routes/ember-users.js

@@ -1,6 +1,9 @@
 import Route from '@ember/routing/route';
+import { inject as service } from '@ember/service';
 
 export default class EmberUsersRoute extends Route {
+  @service store;
+
   model() {
     return this.store.findAll('user');
   }

app/routes/learn.js

@@ -1,6 +1,9 @@
 import Route from '@ember/routing/route';
+import { inject as service } from '@ember/service';
 
 export default class LearnRoute extends Route {
+  @service store;
+
   model() {
     return this.store.findAll('showcase');
   }

app/routes/mascots.js

@@ -1,6 +1,9 @@
 import Route from '@ember/routing/route';
+import { inject as service } from '@ember/service';
 
 export default class MascotsRoute extends Route {
+  @service store;
+
   model() {
     return this.store.findAll('tomster');
   }

app/routes/releases.js

@@ -1,6 +1,9 @@
 import Route from '@ember/routing/route';
+import { inject as service } from '@ember/service';
 
 export default class ReleasesRoute extends Route {
+  @service store;
+
   model() {
     return this.store.findAll('project');
   }

app/routes/releases/beta.js

@@ -1,7 +1,10 @@
 import { hash } from 'rsvp';
 import Route from '@ember/routing/route';
+import { inject as service } from '@ember/service';
 
 export default class ReleasesBetaRoute extends Route {
+  @service store;
+
   model() {
     return hash({
       ember: this.store.find('project', 'ember/beta'),

app/routes/releases/canary.js

@@ -1,8 +1,11 @@
 import Route from '@ember/routing/route';
 import fetch from 'fetch';
 import { hash } from 'rsvp';
+import { inject as service } from '@ember/service';
 
 export default class ReleasesCanaryRoute extends Route {
+  @service store;
+
   model() {
     return hash({
       ember: this.store.find('project', 'ember/canary'),

app/routes/releases/lts.js

@@ -1,6 +1,9 @@
 import Route from '@ember/routing/route';
+import { inject as service } from '@ember/service';
 
 export default class ReleasesLtsRoute extends Route {
+  @service store;
+
   model() {
     return this.store.find('project', 'ember/lts');
   }

app/routes/releases/release.js

@@ -1,7 +1,10 @@
 import { hash } from 'rsvp';
 import Route from '@ember/routing/route';
+import { inject as service } from '@ember/service';
 
 export default class ReleasesReleaseRoute extends Route {
+  @service store;
+
   model() {
     return hash({
       ember: this.store.find('project', 'ember/release'),

app/routes/sponsors.js

@@ -1,7 +1,10 @@
 import Route from '@ember/routing/route';
 import { hash } from 'rsvp';
+import { inject as service } from '@ember/service';
 
 export default class SponsorsRoute extends Route {
+  @service store;
+
   model() {
     return hash({
       sponsors: this.store.findAll('sponsor'),