fix(deps): update fetch-blob version

[sipayRT]

The purpose of this PR is:

To decrease deps size from 8.7Mb to ~200Kb

This is what had to change:

In the fetch-blob package version 3.x, there was a dependency on the web-streams-polyfill package, which had a large size. In version fetch-blob@4, this dependency was dropped

This is what like reviewers to know:

The API in the major version of the fetch-blob package remains unchanged

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• I prefixed the PR-title with docs: , fix(area): , feat(area): or breaking(area):
• I updated ./CHANGELOG.md with a link to this PR or Issue
• I updated the README.md
• I Added unit test(s)

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• fix #000