feat(nvim): move from avante to codecompanion (#222)

Change the AI tool from [avante][0] to [codecompanion][1] to check if it's a better alternative.

Also, install additional tools such as:

* [mcphub][2]
* [vectorcode][3]

These should improve the experience with AI tooling.

Reviewed-on: #222

[0]: https://github.com/yetone/avante.nvim
[1]: https://codecompanion.olimorris.dev/
[2]: https://github.com/ravitemer/mcphub.nvim
[3]: https://github.com/Davidyz/VectorCode
Co-authored-by: Joao P Dubas <joao.dubas+gitea@gmail.com>
Co-committed-by: Joao P Dubas <joao.dubas+gitea@gmail.com>

config/mise/config.toml

@@ -29,7 +29,7 @@
 "go:github.com/bloznelis/typioca" = "3.1.0"
 "npm:@anthropic-ai/claude-code" = "0.2.78"
 "pipx:aider-chat" = { version = "0.82.2", uvx_args = "--python 3.12.7 --with google-generativeai" }
-"pipx:vectorcode" = { version = "0.5.6", uvx_args = "--python 3.13.2" }
+"pipx:vectorcode" = { version = "0.5.6", uvx_args = "--python 3.13.2", extras = "mcp" }
 "ubi:Samyak2/toipe" = "0.5.0"
 "ubi:hlsxx/tukai" = "0.2.2"
 "ubi:jdx/usage" = "2.0.7"