Description

This PR implements quick paste shortcuts that allow users to directly paste clippings from positions 1-5 in the stack using modifier key combinations with number keys (1-5).

Fixes #91

Changes

• Added quickPasteHotkeys array in AppDelegate to store hotkey instances for positions 1-5
• Implemented setQuickPasteHotkeys() method that registers hotkeys using the main hotkey's modifiers (Ctrl+Opt by default) combined with number keys 1-5
• Added pasteAtPosition() method in Interactions that directly pastes from a specific stack position without hiding the app
• Added UI checkbox in HotkeyPreferenceViewController to enable/disable the feature
• Updated preference descriptions to reflect the new shortcuts

How It Works

When enabled, users can:

• Press Ctrl+Opt+1 to paste the 1st clipping (most recent)
• Press Ctrl+Opt+2 to paste the 2nd clipping
• Press Ctrl+Opt+3 to paste the 3rd clipping
• Press Ctrl+Opt+4 to paste the 4th clipping
• Press Ctrl+Opt+5 to paste the 5th clipping

The shortcuts use the same modifier keys as the main Jumpcut hotkey (default: Ctrl+Opt), ensuring consistency with existing keyboard shortcuts.

User Experience

• The feature is opt-in via a checkbox in the Hotkey preferences pane
• Quick paste shortcuts respect the "Move clippings after use" preference
• Works seamlessly with existing Jumpcut functionality (bezel, menu, standard paste)
• No changes to existing behavior when the feature is disabled

Testing

• Tested on macOS with TextEdit and BBEdit
• Verified that quick paste works correctly with Accessibility permissions enabled
• Confirmed that the feature respects user preferences (move to top after use)
• Tested that disabling the feature removes all quick paste hotkeys

Notes

This implementation addresses the workflow described in issue #91, where users frequently need to paste multiple clippings in sequence (e.g., AI-generated headings followed by terminal errors). The shortcuts provide direct access to the first 5 clippings without needing to open the bezel or menu.