[API][Admin/StreetCode page/Tags] An admin can create a tag with an empty title through the creation or updating of a streetcode

[SophiaMRI]

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Environment: All Reproducible: Always Build found: 79fb490

Steps to reproduce

1. Add all necessary data to the body.
2. Leave the title key empty (e.g.: "tags": [
   { "id": 0, "title": " ", "isVisible": true, "index": 0, "streetcodeId": 1385, "modelState": 0/2 } ], ).
3. Click the 'Send' button.

Actual result

1. The 200 OK status in the response.
2. The tag has been created without a title.

Expected result

1. The 400 status in the response.
2. The "The Title field is required." message in the response.

User story and test case links User story #20