Updated header and footer

frontend/public/locales/en/footer.json

 {
-  "footerInfo": "This is a footer namespace value",
-  "contactSectionHeader": "Need help?",
-  "contactHelp": "Contact",
-  "contactHelpMail": "Contact",
-  "responsibleOrganizationHeader": "Maintained by"
+  "applicationTitle": "Guest Service",
+  "link": {
+    "terms": {
+      "header": "TERMS",
+      "ITRules": "IT Rules",
+      "privacy": "Privacy Policy"
+    },
+    "help": {
+      "header": "HELP AND CONTACT",
+      "contact": "Contact Helpdesk",
+      "doc": "Documentation"
+    },
+    "responsibleOrganization": {
+      "header": "RESPONSIBLE FOR THIS SERVICE"
+    }
+  }
 }