Issue #2259567: Unnecessary restrictions on logo format: Can't upload replacement SVG logo

Rebased existing MR on 9.3.x

added 339 commits

• e9bfa0d6...af4f79e8 - 335 commits from branch project:9.3.x
• 01050683 - Apply...
• 74fb3c37 - Revert the change to the description
• 928309d1 - Put back the tests.
• f43a0f92 - Undo changes to the tests that are not related to testing the SVG upload

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