frozenset() initial addition

[alimalim77]

Description

Added the Term Entry for Python Concept frozenset() with details, description, syntax and code.

Issue Solved

• Created an entry for frozen set
• Added the required technical samples and details
• Closes [Term Entry] Python sets .isfrozenset() #4615

Type of Change

• Adding a new entry for frozenset()

Checklist

• [ ✔️] All writings are my own.
• [✔️ ] My entry follows the Codecademy Docs style guide.
• [ ✔️] My changes generate no new warnings.
• [ ✔️] I have performed a self-review of my own writing and code.
• [ ✔️] I have checked my entry and corrected any misspellings.
• [ ✔️] I have made corresponding changes to the documentation if needed.
• [ ✔️] I have confirmed my changes are not being pushed from my forked main branch.
• [ ✔️] I have confirmed that I'm pushing from a new branch named after the changes I'm making.
• [ ✔️] I have linked any issues that are relevant to this PR in the Issues Solved section.

[cigar-galaxy82]

Hey @alimalim77

Thank you for contributing to Codecademy Docs! The entry is well written!

I've suggested a few changes modify them at your convenience

Thank you!

[alimalim77]

@cigar-galaxy82 I have made the changes from my end. LNK if we are done with the changes or not. Thanks!

[Sriparno08]

Looks good, @alimalim77! 👍

[github-actions]

👋 @alimalim77
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