fix: correct typos in solution file names

[yanglbme]

No description provided.

[Copilot]

Pull request overview

This PR cleans up typo-related naming/documentation inconsistencies in the LeetCode solutions tree so each problem directory uses the expected Solution.* filenames and matching README content.

Changes:

• Removes incorrectly named solution files that duplicate the correctly named implementations already present in their directories.
• Removes the extra Rust “Solution 2” content for problem 2729 so the README matches the single retained Rust implementation.
• Improves the English README for problem 2729 by giving Solution 1 a descriptive title and short explanation.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
solution/2800-2899/2859.Sum of Values at Indices With K Set Bits/Solultion.java	Deletes typo-named duplicate of the existing Java solution file.
solution/2800-2899/2857.Count Pairs of Points With Distance k/Soution.go	Deletes typo-named duplicate of the existing Go solution file.
solution/2700-2799/2729.Check if The Number is Fascinating/Solutions.rs	Deletes typo-named Rust solution file in favor of the correctly named file.
solution/2700-2799/2729.Check if The Number is Fascinating/Solution2.rs	Removes the second Rust variant so repository contents align with README/docs.
solution/2700-2799/2729.Check if The Number is Fascinating/README.md	Removes the obsolete second Rust solution section from the Chinese README.
solution/2700-2799/2729.Check if The Number is Fascinating/README_EN.md	Adds a short explanation/title for Solution 1 and removes the obsolete second Rust solution section.
solution/2500-2599/2539.Count the Number of Good Subsequences/Solutoin.cpp	Deletes typo-named duplicate of the existing C++ solution file.
solution/0000-0099/0061.Rotate List/Soution.ts	Deletes typo-named duplicate of the existing TypeScript solution file.
solution/0000-0099/0061.Rotate List/Soution.rs	Deletes typo-named duplicate of the existing Rust solution file.

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