Swagger AccessToken fixes (#16574)

There is a subtle problem with the Swagger definition for AccessTokens which causes
autogeneration of APIs for these endpoints to fail.

This PR corrects these errors.

Ref: https://github.com/zeripath/java-gitea-api/issues/4
Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

routers/api/v1/user/app.go

@@ -76,15 +76,10 @@ func CreateAccessToken(ctx *context.APIContext) {
 	//   description: username of user
 	//   type: string
 	//   required: true
-	// - name: accessToken
+	// - name: userCreateToken
 	//   in: body
 	//   schema:
-	//     type: object
-	//     required:
-	//       - name
-	//     properties:
-	//       name:
-	//         type: string
+	//     "$ref": "#/definitions/CreateAccessTokenOption"
 	// responses:
 	//   "201":
 	//     "$ref": "#/responses/AccessToken"