Add support for reading and writing Name & Caption properties to file blocks

[KoditkarVedant]

Description

Add support for reading and writing Name & Caption properties to file blocks

Fixes #435

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A
• Test B

Test Configuration:

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• Hardware:
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• SDK:

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

[Copilot]

Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.

[Copilot]

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (1)

Test/Notion.IntegrationTests/BlocksClientTests.cs:440

• [nitpick] Consider adding a comment to clarify why the file name is expected to automatically have a '.jpg' extension after being set, to aid future maintainers in understanding this behavior.

file.Name.Should().Be("Test file name.jpg");

[Copilot]

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Comments suppressed due to low confidence (1)

Test/Notion.IntegrationTests/BlocksClientTests.cs:442

• Consider adding additional test cases to cover scenarios where the file's Name property may already include an expected extension versus when it should be auto-appended from the URL. This will help ensure consistent behavior across different file types.

file.Name.Should().Be("Test file name.jpg");