* Updated folder name to not be the deprecated
* Changed backend to use Starter Project as default folder name
* Changed docs
* Changed frontend to display pure folder name without deprecated
* Updated tests
* Added migration to change folder name
* Refactor migration to rename folder names with unique constraint checks for users. Updated upgrade and downgrade functions to streamline the renaming process for "My Projects" and "Starter Project".
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Co-authored-by: Gabriel Luiz Freitas Almeida <gabriel@langflow.org>
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