New "Squint Mode"!

• ✨ Squint Mode! (My "Opus"! 😂) — Labels every non-whitespace character instead of words. Great for zoomed-in views, large fonts, or large monitors. Activate via Jumpy: Toggle Squint Mode from the command palette (suggested keybinding: ctrl+shift+enter). Try it!!!
• ✨ Squint Selection Mode — Combine squint mode with selection for precise character-level selections. Suggested keybinding: ctrl+shift+alt+enter.
• ✨ Tab to switch modes — Press tab while in jump mode to toggle between Classic and Squint mode without exiting. Works both directions.
• ✨ Invert Default Modes — New command Jumpy: Invert Default Modes (Classic/Squint) swaps toggle behavior for the session. Useful if you prefer squint mode as your daily driver.
• ✨ Mode status bar — New status bar indicator shows "Classic" or "Squint" mode. Updates during jump mode. Click to invert defaults.
• 📝 Add vim/neovim keybinding suggestions for squint mode (gs and gS).
• 📝 Updated README.md with squint mode documentation.