Moved a lot of remaps to plugin files

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

lua/taken/plugins/cmdline.lua

@@ -3,6 +3,8 @@ return {
     dependencies = "MunifTanjim/nui.nvim",
     cmd = "FineCmdline",
     config = function()
+        vim.keymap.set("n", "<leader><CR>", "<cmd>FineCmdline<CR>", { noremap = true })
+
         local cmdline = require("fine-cmdline")
 
         cmdline.setup({