feats: nvim, emacs, shell

* nvim: Add copilot completions
* nvim: grug-far buffer won't show lualine & winbar now
* nvim: remove obsidian.nvim
* nvim: luasnip now works
* emacs: more keymaps in org-mode
* emacs: start customizing leader keys
* shell: Add more ls aliases
* shell: Add apt alias in fish

tools/nvim/lua/plugins/mod/winbar-nvim.lua

@@ -33,6 +33,7 @@ return {
           "qf",
           "floaterm",
           "orgagenda",
+          "grug-far"
         },
       })
     end,