Add the ToS to the navigation bar (#3727)

* Add the ToS to the navigation bar

* Update locales and snapshots

frontend/src/composables/use-pages.ts

@@ -35,6 +35,11 @@ export default function usePages() {
       name: "navigation.api",
       link: "https://api.openverse.engineering/v1/",
     },
+    {
+      id: "terms",
+      name: "navigation.terms",
+      link: "https://docs.openverse.org/terms_of_service.html",
+    },
     {
       id: "privacy",
       name: "navigation.privacy",

frontend/src/locales/scripts/en.json5

@@ -66,6 +66,7 @@
     licenses: "Licenses",
     getInvolved: "Get involved",
     api: "API",
+    terms: "Terms",
     privacy: "Privacy",
     feedback: "Feedback",
     sources: "Sources",

frontend/test/locales/ar.json

@@ -678,6 +678,7 @@
     "licenses": "التراخيص",
     "getInvolved": "شارك",
     "api": "API",
+    "terms": "شروط",
     "privacy": "خصوصية",
     "feedback": "استجابة",
     "sources": "مصادر",