feat(neovim): add supermaven copilot like plugin (#173)

Add [`supermaven`](https://supermaven.com/) copilot and configure it.

Reviewed-on: #173
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

@@ -264,4 +264,14 @@ return {
       },
     },
   },
+  {
+    'supermaven-inc/supermaven-nvim',
+    opts = {
+      keymaps = {
+        accept_suggestion = '<C-y>',
+        clear_suggestion = '<C-d>',
+        accept_word = '<C-j>',
+      },
+    },
+  },
 }

patch/kickstart.nvim/updates.patch

@@ -1,5 +1,5 @@
 diff --git a/init.lua b/init.lua
-index 4eae8e7..b9f7554 100644
+index 4eae8e7..f2609ec 100644
 --- a/init.lua
 +++ b/init.lua
 @@ -91,7 +91,7 @@ vim.g.mapleader = ' '
@@ -134,7 +134,15 @@ index 4eae8e7..b9f7554 100644
              require('lspconfig')[server_name].setup(server)
            end,
          },
-@@ -844,12 +926,19 @@ require('lazy').setup({
+@@ -830,6 +912,7 @@ require('lazy').setup({
+             -- set group index to 0 to skip loading LuaLS completions as lazydev recommends it
+             group_index = 0,
+           },
++          { name = 'supermavem' },
+           { name = 'nvim_lsp' },
+           { name = 'luasnip' },
+           { name = 'path' },
+@@ -844,12 +927,19 @@ require('lazy').setup({
      --
      -- If you want to see what colorschemes are already installed, you can use `:Telescope colorscheme`.
      'folke/tokyonight.nvim',
@@ -155,7 +163,7 @@ index 4eae8e7..b9f7554 100644
  
        -- You can configure highlights by doing something like:
        vim.cmd.hi 'Comment gui=none'
-@@ -902,7 +991,39 @@ require('lazy').setup({
+@@ -902,7 +992,39 @@ require('lazy').setup({
      main = 'nvim-treesitter.configs', -- Sets main module to use for opts
      -- [[ Configure Treesitter ]] See `:help nvim-treesitter`
      opts = {
@@ -196,7 +204,7 @@ index 4eae8e7..b9f7554 100644
        -- Autoinstall languages that are not installed
        auto_install = true,
        highlight = {
-@@ -932,17 +1053,17 @@ require('lazy').setup({
+@@ -932,17 +1054,17 @@ require('lazy').setup({
    --  Uncomment any of the lines below to enable them (you will need to restart nvim).
    --
    -- require 'kickstart.plugins.debug',