feat: Migrate mp upload settings convert to objc updated

[denischilik]

Background

We are going to move MPUserDefaults to swift target
We need to remove all objc dependencies first from MPUserDeafault. And first step is to hold them in one place so that MPUserDeafault should depends from protocol and only one objc class.
All objc related logic will be moved into this class in next PR.
PR also remove a lot of duplication from code

What Has Changed

• Convert one class to Objcs
• Create Connector class to keep all dependencies from objc code in one place
• Get user defaults from MPUserDeafaultConnector

Screenshots/Video

• {Include any screenshots or video demonstrating the new feature or fix, if applicable}

Checklist

• I have performed a self-review of my own code.
• I have made corresponding changes to the documentation.
• I have added tests that prove my fix is effective or that my feature works.
• I have tested this locally.

Additional Notes

• {Any additional information or context relevant to this PR}

Reference Issue (For employees only. Ignore if you are an outside contributor)

• Closes https://go/j/[ticket-number]

[github-actions]

📦 SDK Size Impact Report

Measures how much the SDK adds to an app's size (with-SDK minus without-SDK).

Metric	Target Branch	This PR	Change
App Bundle Impact	1.61 MB	1.59 MB	-16 KB
Executable Impact	896 bytes	896 bytes	+N/A
XCFramework Size	6.41 MB	6.32 MB	-100 KB

➡️ SDK size impact change is minimal.

Raw measurements

Target branch (workstation/9.0-Release):

{"baseline_app_size_kb":84,"baseline_executable_size_bytes":75464,"with_sdk_app_size_kb":1732,"with_sdk_executable_size_bytes":76360,"sdk_impact_kb":1648,"sdk_executable_impact_bytes":896,"xcframework_size_kb":6568}

This PR:

{"baseline_app_size_kb":84,"baseline_executable_size_bytes":75464,"with_sdk_app_size_kb":1716,"with_sdk_executable_size_bytes":76360,"sdk_impact_kb":1632,"sdk_executable_impact_bytes":896,"xcframework_size_kb":6468}