….0 to 0.12.1 for compatibility improvements

refactor(package.json): rename experimental-zkapp-offchain-storage dependency to experimental-offchain-zkapp-storage and downgrade version from 0.2.0 to 0.1.0 due to package renaming and versioning changes

- refactor: change import paths from 'experimental-zkapp-offchain-storage' to 'experimental-offchain-zkapp-storage' for better naming consistency
- refactor: replace 'Field.zero' with 'Field(0)' for better readability
- refactor: replace 'assertGt' with 'assertGreaterThan' for better readability
- refactor: replace 'setPermissions' with 'account.permissions.set' for better readability
- refactor: remove unnecessary 'SignedMessageBoard.test.ts' file
- refactor: clean up unnecessary imports and await calls
- refactor: update transaction signing and sending process for better readability
- refactor: update 'loopUntilAccountExists' and 'makeAndSendTransaction' functions for better readability
- refactor: update 'zkAppNeedsInitialization' function for better readability

These changes were made to improve the readability and maintainability of the code.

…contract

feat(main.ts): add console log message after compiling smart contract for better user feedback

…es, build, and dist directories for better project cleanliness

…ide more project information and improve project visibility on npm

…e transaction validity before sending it

…nks to reflect recent changes

feat(experimental-offchain-zkapp-storage): bump version to 0.1.1 to reflect changes in the package

…or better readability

…to enable local blockchain usage for testing purposes

…hanges

feat(package.json): add clean script to remove build files and database.json for a clean start
feat(package.json): add prepublishOnly script to ensure clean build before publishing

…w build command and file path

fix(mina-setup.ts): correct the error message to match the updated usage instructions for better user guidance

…build artifacts

feat(GradientBG.js): add new GradientBG component for dynamic background gradients
feat(index.page.tsx): integrate GradientBG component into main page for enhanced UI
style(Home.module.css): update styles for better UI/UX and responsive design