Add sequential pane navigation and rotation to match XMonad's window
management pattern. This creates consistent muscle memory across both
the window manager and terminal multiplexer.
Changes:
- Add Alt+PageUp/PageDown for sequential pane focus (mirrors XMonad's window cycling)
- Add Alt+Ctrl+PageUp/PageDown for pane rotation (mirrors XMonad's rotAll)
- Change Leader+Tab to Leader+t for new tab (free up 't' was for zoom, now 'm')
- Change zoom from Leader+t to Leader+m (matches XMonad's maximize mnemonic)
Keybinding philosophy:
- Base keys (Alt+PageUp/Down) = navigation/viewing
- Ctrl modifier = structural control (resize/rotate)
- Consistent with XMonad: Mod+PageUp/Down (focus), Mod+Ctrl+PageUp/Down (rotate)
Replace dynamic pane management with explicit keybindings for better
discoverability. Add dmenu-based tab renaming and direct tab navigation
by index for improved workflow efficiency.
