This pull request renames the folder sampleUsngLocalApi and the solution file to ensure consistency and correctness.

What kind of change does this PR introduce?

File renaming and path updates:

• Renamed the solution file from samples/SampleWithLocalAPIs.sln to samples/SampleUsingLocalApi.sln for improved naming consistency.
• Updated project paths within the solution file to correct the directory name from sampleUsngLocalApi to SampleUsingLocalApi for all associated projects (LibraryWithSDKandRefitService, RestApiForTest, and ConsoleSampleUsingLocalApi).

What might this PR break?
Nothing.

Please check if the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

Other information: