docs: enhance installation instructions and .env configuration details
Link to Quicken import guide from Next Steps Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Add PWA installation guide to Getting Started Document what the Progressive Web App is and how to install it on desktop (Chrome/Edge/Brave), Android, iOS Safari, and Firefox for Android, plus uninstall and troubleshooting steps. Link to the new section from the PWA feature bullet on the Home page. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Doc updates to address new features (bulk delete/tags etc)
Fix links
Initial doc upload