feat(nvim): add keybind to run shell files with bash

dots/.config/nvim/after/ftplugin/sh.lua

@@ -1 +1,9 @@
 vim.opt_local.expandtab = false
+
+vim.keymap.set("n", "<leader>fr", function()
+    vim.cmd.write()
+    require("toggleterm").exec("bash " .. vim.api.nvim_buf_get_name(0))
+end, {
+    buffer = true,
+    desc = "Bash: Save and Run Current Buffer"
+})