added String Encoding (base58 and base64)

[Er-luffy-D]

Description

This pull request adds Base64 and Base58 encoding/decoding tools to the dev-utils application.

• Problem: Developers currently lack built-in utilities for encoding and decoding strings in Base64 and Base58 formats, which are commonly used in general development and blockchain applications.
• Solution: Introduce Base64 and Base58 encoder/decoder tools with real-time preview and copy-to-clipboard functionality.
• Side effects / New dependencies: No breaking changes; may add small dependencies for Base58 encoding/decoding if not already included.

Related Issue

Fixes #1

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Code refactor or performance improvement
• Other (please describe):

Checklist

• I have read the project's CONTRIBUTING.md file.
• I have tested my changes locally.
• My code follows the style guidelines of this project.
• I have added comments to my code, particularly in hard-to-understand areas.
• I have updated the documentation accordingly.
• My changes generate no new warnings.

[Er-luffy-D]

@ahammadabdullah please review it and add hacktoberfest label in it

[ahammadabdullah]

@Er-luffy-D

[Er-luffy-D]

@Er-luffy-D

yes @ahammadabdullah , still can't see any review

[ahammadabdullah]

@all-contributors please add @Er-luffy-D for feature string encoding decoding.
@Er-luffy-D You did a great job . thanks for you contribution.

[allcontributors]

@ahammadabdullah

I couldn't determine any contributions to add, did you specify any contributions?
Please make sure to use valid contribution names.

[ahammadabdullah]

@all-contributors please add @Er-luffy-D for code feature string encoding decoding.

[allcontributors]

@ahammadabdullah

I've put up a pull request to add @Er-luffy-D! 🎉

[Er-luffy-D]

@ahammadabdullah hey if possible please add hacktoberfest label in it

[ahammadabdullah]

@ahammadabdullah hey if possible please add hacktoberfest label in it

the repo is already tagged with hacktoberfest. dont worry your pr will get counted sooner or later.

[Er-luffy-D]

@ahammadabdullah hey if possible please add hacktoberfest label in it

the repo is already tagged with hacktoberfest. dont worry your pr will get counted sooner or later.

ok Thanks