fix: formatting support for multiple if statements

[shashank-iitbhu]

1. Does this PR affect any open issues?(Y/N) and add issue references:

• N
• Y

fixes #1039

2. What is the scope of this PR (e.g. component or file name):

kclvm/ast_pretty/src/node.rs

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

Screen.Recording.2024-02-16.at.3.34.02.AM.mov

• Since if_stmt.orelse is Vec<NodeRef<Stmt>>, so to format the code correctly for multiple if statements inside an else block, had to iterate through all the elements of if_stmt.orelse.
• This approach ensures that all the if statements are formatted correctly.

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• N
• Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• Unit test
• Integration test
• Benchmark (add benchmark stats below)
• Manual test (add detailed scripts or steps below)
• Other

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[shashank-iitbhu]

I have read the CLA Document and I hereby sign the CLA

[shashank-iitbhu]

recheck

[coveralls]

Pull Request Test Coverage Report for Build 7934340233

Details

• 0 of 15 (100.0%) changed or added relevant lines in 1 file are covered.
• 241 unchanged lines in 8 files lost coverage.
• Overall coverage decreased (-15.4%) to 72.337%

---

Files with Coverage Reduction	New Missed Lines	%
compiler_base/error/src/diagnostic/diagnostic_message.rs	3	0.0%
compiler_base/error/src/diagnostic/components.rs	6	0.0%
compiler_base/error/src/errors.rs	8	0.0%
compiler_base/error/src/diagnostic/diagnostic_handler.rs	11	0.0%
compiler_base/session/src/lib.rs	26	58.06%
compiler_base/error/src/diagnostic/mod.rs	27	0.0%
compiler_base/error/src/diagnostic/style.rs	41	0.0%
compiler_base/error/src/emitter.rs	119	0.0%

Totals
Change from base Build 7798962109:	-15.4%
Covered Lines:	43878
Relevant Lines:	60658

---

💛 - Coveralls

[shashank-iitbhu]

@Peefy Any idea why these workflows are failing? went through the logs, I think these workflows need to be updated.