IBX-7852: Exposed maxFileSize values per each image Content Type

[konradoboza]

Question	Answer
JIRA issue	IBX-7852
Type	improvement
Target version	v4.6
BC breaks	no
Doc needed	no

To make sue DAM gets proper file size limits, we need to iterate over image-suitable Content Types and get their configured maxFileSize values. If none was set, we fallback to the "global", YAML-configured one.

Checklist:

• Provided PR description.
• Tested the solution manually.
• Provided automated test coverage.
• Checked that target branch is set correctly (master for features, the oldest supported for bugs).
• Asked for a review (ping @ibexa/engineering).

[sonarcloud]

Quality Gate passed

Issues
0 New issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[konradoboza]

Incorporated into #1184, closing.