Moved a lot of remaps to plugin files

Signed-off-by: Taken <taken@mairimashita.org>

lua/taken/plugins/neotree.lua

@@ -7,6 +7,9 @@ return {
         "MunifTanjim/nui.nvim",
     },
     config = function()
+        vim.keymap.set("n", "<leader>n", "<cmd>Neotree toggle<CR>")
+        vim.keymap.set("n", "<leader>e", "<cmd>Neotree focus<CR>")
+
         local neotree = require("neo-tree")
 
         neotree.setup({