fix(best-analyzer): Allow multi-project comparison

[diervo]

Details

Allow multi project comparison within a repository.

Does this PR introduce a breaking change?

• No

If yes, please describe the impact and migration path for existing applications:
Please check if your PR fulfills the following requirements:

Reminders ( please delete this section before submitting )

---

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)

PR Title

LWC PR title follows conventional commit format and is automatically validated by our CI.

ex:
commit-type(optional scope): commit description. ( NOTE: space between column and the message )

Types: build, chore, ci, docs, feat, fix, perf, refactor, revert, style, test, proposal.
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[salesforce-best-lwc-internal]

Benchmark comparison

Base commit: fb23e9a | Target commit: 43ce7fd

benchmark	base(fb23e9a)	target(43ce7fd)	trend