feat(SW-2285): Added campaign essentials block on campaign page

Approved-by: Christian Andolf
Approved-by: Matilda Landström

apps/scandic-web/lib/graphql/Fragments/Blocks/Essentials.graphql

@@ -0,0 +1,11 @@
+fragment Essentials_CampaignPage on CampaignPageBlocksEssentials {
+  essentials {
+    title
+    preamble
+    items {
+      label
+      icon_identifier
+      description
+    }
+  }
+}

apps/scandic-web/lib/graphql/Query/CampaignPage/CampaignPage.graphql

@@ -1,4 +1,5 @@
 #import "../../Fragments/System.graphql"
+#import "../../Fragments/Blocks/Essentials.graphql"
 
 query GetCampaignPage($locale: String!, $uid: String!) {
   campaign_page(uid: $uid, locale: $locale) {
@@ -11,6 +12,10 @@ query GetCampaignPage($locale: String!, $uid: String!) {
       first_column
       second_column
     }
+    blocks {
+      __typename
+      ...Essentials_CampaignPage
+    }
     system {
       ...System
       created_at