Change a placeholder for the profile photo and company logo on the Employer’s onboarding page

[anna9314]

Use these as a placeholder. Color should be suited to the design https://fontawesome.com/icons/image?f=classic&s=solid https://fontawesome.com/v5/icons/user-circle?f=classic&s=solid&pc=%23335a9e

[katerynakostikova]

Build in 15 min

[katerynakostikova]

https://bsa2023.slack.com/archives/C05PZJMEV8V/p1695631719788729

[anna9314]

Tested