Refactor TinyLink: decompose update() into focused helpers (SOLID/DRY/KISS) (#30)

* Changes before error encountered

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* Refactor TinyLink: decompose update() following SOLID/DRY/KISS principles

Co-authored-by: petesramek <2333452+petesramek@users.noreply.github.com>
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Co-authored-by: petesramek <2333452+petesramek@users.noreply.github.com>

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