v2.0.0 - polished UI & drag-and-drop

What's New 🎉

✨ UI Overhaul

• Polished button styling with hover/press states, color-coded actions (blue primary, red danger), and consistent visual hierarchy across all panels
• Proportional column sizing — columns distribute available width dynamically based on content, resize with the splitter, and never go narrower than their header text

📁 Drag & Drop Uploads

• Drag files from your file manager directly onto the file browser tree
• Target folder is detected automatically based on where you drop
• Confirmation dialog shows destination path before uploading
• Multiple files are committed atomically in a single commit

🔍 Live Search

• Repo filtering is now instant as you type — no need to press Enter
• 700ms debounce keeps it responsive without hammering the API
• Filters locally against the cached repo list for zero-latency results

🖱️ Quality of Life

• Double-click a repo in the left panel to open it on Hugging Face Hub
• Clickable token URL in the login dialog
• Sort column and direction persist across sessions
• Updated emoji icons throughout (🔄, ➕, 🗑, 🔒, 🌐, 📄, ✏️, 📝)

📦 Windows Installer

• Inno Setup-based installer with embedded Python and uv package manager
• Creates a virtual environment and installs dependencies at install time
• Real-time progress bar during setup
• Desktop and Start Menu shortcuts
• Clean uninstall with multi-stage cleanup