content, use primary types, move title to defs

So I sort of used "object" instead of "record" because I thought key was
an option type ^_^

So I had to fix that.

Also moves title to defs because it is not supposed to be a record

lexicons/my/spoor/content/title.json

@@ -1,27 +0,0 @@
-{
-  "lexicon": 1,
-  "id": "my.spoor.content.title",
-  "defs": {
-    "main": {
-      "type": "object",
-      "properties": {
-        "language": { 
-          "type": "string",
-          "format": "nsid",
-          "knownValues": [
-            "my.spoor.content.title#romanization",
-            "my.spoor.content.title#english",
-            "my.spoor.content.title#native"
-          ]
-        },
-        "value": { "type": "string", "minLength": 1 }
-      }
-    },
-    "romanization": { "type": "token",
-      "description": "Romanization of the native title" },
-    "english": { "type": "token",
-      "description": "English translation or title" },
-    "native": { "type": "token",
-      "description": "Native title" }
-  }
-}