Add Streak Command to LeetCode Discord Bot

[J-B-Mugundh]

Description: This PR introduces a new command ;streak to the LeetCode Discord bot, allowing users to track their problem-solving streak on LeetCode. The command fetches and displays the number of consecutive days a user has solved a problem.

Changes Made:

Added Streak Command:

• Users can now check their streak by using the command ;streak .
• The bot responds with a message indicating the number of consecutive days the specified user has solved problems on LeetCode.
• If the user has no streak, the bot encourages them to start solving problems to build their streak.

Example Responses: If the user has a streak: username has solved a problem for X consecutive days! Keep it up!

If the user has no streak: username does not have a streak yet. Start solving problems to build your streak!

Motivation: This feature aims to enhance user engagement by encouraging them to maintain their streaks while solving LeetCode problems, fostering a sense of achievement and consistency in their coding practice.

Related issue;

9

Screenshots:

[J-B-Mugundh]

@jinx-vi-0 Please review this and add gssoc-extd and hacktoberfest labels