Restructure modules/shared and update all imports

- Delete 2024-12-rework/ folder
- Rename modules/hosts/common to modules/shared, then split into:
  - modules/shared/home/general
  - modules/shared/home/linux
  - modules/shared/nixos
- Update all import paths throughout the codebase
- Update lib/*.nix to use new paths
- Fix hardcoded /Users/${username} to use config.home.homeDirectory
- Update README and examples/flake-structure.nix

modules/hosts/common/files/xfce4/terminal/terminalrc

@@ -1,36 +0,0 @@
-[Configuration]
-MiscAlwaysShowTabs=FALSE
-MiscBell=FALSE
-MiscBellUrgent=FALSE
-MiscBordersDefault=TRUE
-MiscCursorBlinks=FALSE
-MiscCursorShape=TERMINAL_CURSOR_SHAPE_BLOCK
-MiscDefaultGeometry=120x24
-MiscInheritGeometry=FALSE
-MiscMenubarDefault=TRUE
-MiscMouseAutohide=FALSE
-MiscMouseWheelZoom=TRUE
-MiscToolbarDefault=FALSE
-MiscConfirmClose=TRUE
-MiscCycleTabs=TRUE
-MiscTabCloseButtons=TRUE
-MiscTabCloseMiddleClick=TRUE
-MiscTabPosition=GTK_POS_TOP
-MiscHighlightUrls=TRUE
-MiscMiddleClickOpensUri=FALSE
-MiscCopyOnSelect=FALSE
-MiscShowRelaunchDialog=TRUE
-MiscRewrapOnResize=TRUE
-MiscUseShiftArrowsToScroll=FALSE
-MiscSlimTabs=FALSE
-MiscNewTabAdjacent=FALSE
-MiscSearchDialogOpacity=100
-MiscShowUnsafePasteDialog=TRUE
-ColorForeground=#e3e3ea
-ColorCursor=#ff7f7f
-ColorPalette=#000000;#e52222;#a6e32d;#fc951e;#c48dff;#fa2573;#67d9f0;#f2f2f2;#555555;#ff5555;#55ff55;#ffff55;#5555ff;#ff55ff;#55ffff;#ffffff
-ColorBackground=#08052b
-ColorCursorUseDefault=FALSE
-BackgroundMode=TERMINAL_BACKGROUND_TRANSPARENT
-BackgroundDarkness=0.950000
-