chore: Introduce fee buffer

[janjakubnanista]

Fixes #issue_number

Description

Test scenarios

Checklist:

• [ ] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have cleaned up the code in the areas my change touches
• [ ] My changes generate no new warnings
• [ ] Any dependent changes have been merged and published in downstream modules
• [ ] I have checked my code and corrected any misspellings
• [ ] I have removed any unnecessary console messages
• [ ] I have included all english text to the translation file and/or created a new issue with the required translations for the currently supported languages
• [ ] I have tested for mobile functionality and responsiveness
• [ ] I have added appropriate test coverage

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