* chore(defaults.lua): add expandtab and smarttab options

* chore(keymaps.lua): add silent and noremap options to NvimTreeToggle keymap
* chore(nvim-tree.lua): comment out auto open autocmd
* chore(init.lua): disable netrw and add autoformat and debug plugins
* feat(autopairs.lua): add nvim-autopairs plugin with default configuration

* feat(init.lua): add vim-go plugin
* feat(nvim-tree.lua): add custom filter to ignore .git directory in nvim-tree view

lua/custom/plugins/init.lua

@@ -2,4 +2,6 @@
 --  I promise not to create any merge conflicts in this directory :)
 --
 -- See the kickstart.nvim README for more information
-return {}
+return {
+  'fatih/vim-go',
+}