Fixed unclear error message during api/products/image requests with improper input data

[KminekMatej]

Add new throw clause for better debug, when input data are not specified correctly

Questions	Answers
Branch?	develop
Description?	Improper input data during api/products/image requests leads to unclear error message. I added a bit more detailed error message.
Type?	improvement
Category	WS
BC breaks?	no
Deprecations?	no
Fixed ticket?	Fixes #22313 .
How to test?	Send request with malformed image property - instead of displaying error code 500 / 66: Unable to save this image, response should be 400 / 67: Missing tmp_file property. Check supplied input data.

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This change is 

[prestonBot]

Hello @KminekMatej!

This is your first pull request on the PrestaShop project. Thank you, and welcome to this Open Source community!

[prestonBot]

Hi, thanks for this contribution!

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• Your pull request does not seem to fix any issue, consider creating one (see note below) and linking it by writing Fixes #1234.

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[KminekMatej]

Fixes #22313

[Progi1984]

@PrestaShop/qa-functional OK for a QA dev ?

[Robin-Fischer-PS]

@Progi1984 Yes, OK for QA by dev. Thanks :)

[atomiix]

Before the PR:

After the PR:

This PR is QA ✔️

[prestonBot]

QA approved, well done! Message to the maintainers: do not forget to milestone it before the merge.

[Progi1984]

Thanks @KminekMatej & @atomiix

[prestonBot]

Contribution merged, congratulations!

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