Resolve root media nodes when using the Content Delivery Api

[deMD]

Currently when using the Content Delivery Api there is a hard limit of one level of depth when querying content, this includes media. This is a problem in situation where you, for example, have a Slider where you want to link to related content and need the image for that related content. Because media is not expanded, and it's a second level of depth, the value returned is null as you can see in the thumbnailImage and icon in the example below:

https://localhost:44384/umbraco/delivery/api/v1/content/item/000da1ea-c6c7-4b30-91c3-7b3fcab3a106?expand=all

 "properties": {
              "slides": [
                {
                  "contentType": "articleDocument",
                  "name": "same Name",
                  "createDate": "2023-10-18T15:34:05Z",
                  "updateDate": "2023-10-31T09:52:12.693Z",
                  "route": {
                    "path": "/articles/sample-name/",
                    "startItem": {
                      "id": "681b3ac0-011f-4650-93c8-69dd583942af",
                      "path": "..."
                    }
                  },
                  "id": "10a3d9f3-1cf4-4a40-b12b-d04503748aac",
                  "properties": {
                    "dateTime": null,
                    "icon": null,
                    "thumbnailImage": null,
                    "title": "Sample title",
                    ...

I suggest always resolving the root level of linked Media items so they can be used without requiring additional calls.