feat(neovim): use default keymaps for supermaven (#180)

The previous keymaps conflicted with `LSP` ones.

Reviewed-on: #180
Co-authored-by: Joao P Dubas <joao.dubas+gitea@gmail.com>
Co-committed-by: Joao P Dubas <joao.dubas+gitea@gmail.com>

config/nvim/lua/custom/plugins/init.lua

@@ -268,8 +268,8 @@ return {
     'supermaven-inc/supermaven-nvim',
     opts = {
       keymaps = {
-        accept_suggestion = '<C-y>',
+        accept_suggestion = '<Tab>',
-        clear_suggestion = '<C-d>',
+        clear_suggestion = '<C-]>',
         accept_word = '<C-j>',
       },
     },