[Art Gallery block] Dot appers instead of empty Title field

[ChornaOksana]

Environment: Windows 10, Google Chrome 124.0.6367.92
Reproducible: always
Build found:79fb490
Severity: trivial
Priority: medium

Preconditions

1. Streetcode is created
2. At least one photo to Art gallery is added. Admin didn`t fill in the Title field

Steps to reproduce

1. Go to Streetcode page
2. Go to Art gallery block
3. Click on foto, modal window is opened.

Actual result
Dot appers instead of empty Title field

Expected result
Title field remains empty
mockup

User story and test case links
User story #75