fix(web): remove unload event listener to fix Chrome 146+ deprecation#924

simolus3 merged 4 commits intopowersync-ja:mainpowersync-ja/powersync-js:mainfrom

JexanJoel:fix/replace-unload-with-pagehideJexanJoel/powersync-js:fix/replace-unload-with-pagehideCopy head branch name to clipboard