Object storage browser: Get Content-Type from the file extension during upload

[abh1sar]

Description

This PR fixes #11092

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)
• build/CI
• test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

• Major
• Minor

Bug Severity

• BLOCKER
• Critical
• Major
• Minor
• Trivial

Screenshots (if appropriate):

How Has This Been Tested?

Before fix:

After fix:

How did you try to break this feature and the system with this change?

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 16.57%. Comparing base (4662ffc) to head (27b792f).
Report is 4 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #11093      +/-   ##
============================================
- Coverage     16.60%   16.57%   -0.03%     
- Complexity    13927    13968      +41     
============================================
  Files          5730     5743      +13     
  Lines        508254   510496    +2242     
  Branches      61789    62076     +287     
============================================
+ Hits          84395    84615     +220     
- Misses       414420   416418    +1998     
- Partials       9439     9463      +24     

Flag	Coverage Δ
uitests	3.90% <ø> (-0.04%)	⬇️
unittests	17.47% <ø> (-0.03%)	⬇️

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[DaanHoogland]

clgtm

[abh1sar]

@blueorangutan package

[blueorangutan]

@abh1sar a [SL] Jenkins job has been kicked to build packages. It will be bundled with KVM, XenServer and VMware SystemVM templates. I'll keep you posted as I make progress.

[blueorangutan]

Packaging result [SF]: ✔️ el8 ✔️ el9 ✔️ debian ✔️ suse15. SL-JID 13928