Fix Yazi shell integration and enhance Kitty configuration

**Yazi Integration Fixes:**
- Fixed y() function in .zshrc to prevent shell exit when quitting Yazi
- Updated kitty-yazi.sh script to use AppleScript for proper tab creation
- Script now focuses existing Kitty window and creates new tab instead of new window

**Kitty Configuration Enhancements:**
- Added advanced font rendering with ligature support
- Improved cursor animations and visual effects
- Enhanced tab bar with powerline styling and fade effects
- Added background blur and better transparency handling
- Optimized performance settings (rendering delays, scrolling)
- Added comprehensive keyboard shortcuts for window/tab management
- Improved URL handling and text selection features
- Added notification system for long-running commands

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

kitty/current-theme.conf

@@ -0,0 +1,47 @@
+background #3b3c35
+foreground #fdfff1
+
+cursor #fdfff1
+cursor_text_color #000000
+selection_foreground #3b3c35
+selection_background #fdfff1
+
+# dull black
+color0 #3b3c35
+# light black
+color8 #6e7066
+
+# dull red
+color1 #f82570
+# light red
+color9 #f82570
+
+# dull green
+color2 #a6e12d
+# light green
+color10 #a6e12d
+
+# yellow
+color3 #e4db73
+# light yellow
+color11 #e4db73
+
+# blue
+color4 #fc961f
+# light blue
+color12 #fc961f
+
+# magenta
+color5 #ae81ff
+# light magenta
+color13 #ae81ff
+
+# cyan
+color6 #66d9ee
+# light cyan
+color14 #66d9ee
+
+# dull white
+color7 #fdfff1
+# bright white
+color15 #fdfff1