feat: Add context menu support and refactor settings UI

[bkidd-godaddy]

Summary

• Context Menu Implementation: Added right-click context menu support for clip items with both CSS-based and native Electron options
• UI/UX Improvements: Refactored settings layout, updated theme colors, and improved template manager design
• Build Optimizations: Optimized Mac builds for arm64 only and added DMG cleanup tooling

Screenshots

Light Theme

Dark Theme

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Added

• Right-click context menu for clip items with smart positioning
• CSS-based context menu component (ClipContextMenu.tsx) with theme support
• Native Electron context menu option via IPC handlers
• Custom hooks for context menu management (useContextMenu.ts, useNativeContextMenu.ts)
• Pattern detection indicators (⚡ icon) in context menu
• DMG cleanup script for build artifacts

Changed

• Refactored settings UI layout for better organization and visual hierarchy
• Improved template manager design with better spacing and layout
• Updated theme accent colors from blue to gray for more neutral appearance
• Changed toggle switches to green for better contrast and accessibility
• Enhanced light mode support across context menu and settings components
• Optimized Mac builds to arm64 only (removed x64 build)
• Updated .gitignore for better build artifact management
• Improved hover states and visual feedback across UI components
• Updated README to reflect new context menu functionality

Fixed

• Resolved context menu positioning issues at viewport boundaries
• Fixed Font Awesome icon loading in context menu
• Removed unused IpcRendererEvent parameter in context menu hook

Removed

• Unused IpcRendererEvent parameter from context menu implementation
• x64 Mac build target (now arm64 only)

[dantheuber]

will remove the cog menu from the right of each clip in an upcoming PR, and only use it to indicate if a clip is locked 👍