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/nvim/lua/plugins/telescope.lua

@@ -1,40 +0,0 @@
-return {
-  {
-    "nvim-telescope/telescope.nvim",
-    tag = "0.1.5",
-    dependencies = { "nvim-lua/plenary.nvim" },
-    config = function()
-      -- This is your opts table
-      require("telescope").setup({
-        extensions = {
-          ["ui-select"] = {
-            require("telescope.themes").get_dropdown({
-              -- even more opts
-            }),
-          },
-        },
-      })
-
-      -- load_extension, somewhere after setup function:
-      require("telescope").load_extension("cheat")
-      require("telescope").load_extension("ui-select")
-
-      local builtin = require("telescope.builtin")
-
-      vim.keymap.set("n", "<leader>ts", ":Telescope<CR>")
-      vim.keymap.set("n", "<C-p>", builtin.find_files, {})
-      vim.keymap.set("n", "<leader><leader>", builtin.oldfiles, {})
-      vim.keymap.set("n", "<leader>fg", builtin.live_grep, {})
-      vim.keymap.set("n", "<leader>fh", builtin.help_tags, {})
-    end,
-  },
-  {
-    "nvim-telescope/telescope-cheat.nvim",
-    dependencies = {
-      "kkharji/sqlite.lua",
-      "nvim-telescope/telescope.nvim",
-    },
-  },
-  { "nvim-telescope/telescope-symbols.nvim" },
-  { "nvim-telescope/telescope-ui-select.nvim" },
-}