[SWAGGER] Make it consistent with reality

- Make the `UserSettings` definition an non-array, this is consistent
with the existing endpoints that uses this definition.
- Resolves #4179

routers/api/v1/swagger/user.go

@@ -46,5 +46,5 @@ type swaggerResponseUserHeatmapData struct {
 // swagger:response UserSettings
 type swaggerResponseUserSettings struct {
 	// in:body
-	Body []api.UserSettings `json:"body"`
+	Body api.UserSettings `json:"body"`
 }

templates/swagger/v1_json.tmpl

@@ -26540,11 +26540,8 @@
     "UserSettings": {
       "description": "UserSettings",
       "schema": {
-        "type": "array",
-        "items": {
         "$ref": "#/definitions/UserSettings"
       }
-      }
     },
     "VariableList": {
       "description": "VariableList",