feat(nvim): migrate from toggleterm to slimux (#73)

Instead of using the native terminal available in `neovim` and the [toggleterm][0] extension, I'm migrating to [slimux][1] and `tmux` to share commands between terminals.

Co-authored-by: Joao P Dubas <joao.dubas@gmail.com>
Reviewed-on: #73

[0]: https://github.com/akinsho/toggleterm.nvim
[1]: https://github.com/EvWilson/slimux.nvim
Co-authored-by: Joao P Dubas <joao.dubas+gitea@gmail.com>
Co-committed-by: Joao P Dubas <joao.dubas+gitea@gmail.com>

Dockerfile

@@ -183,7 +183,7 @@ COPY ./patch/kickstart.nvim/updates.patch /tmp
 COPY ./config/nvim/lua/custom/plugins/init.lua /tmp
 RUN git clone https://github.com/nvim-lua/kickstart.nvim.git "${XDG_CONFIG_HOME}"/nvim \
   && cd ${XDG_CONFIG_HOME}/nvim \
-  && git reset --hard 186018483039b20dc39d7991e4fb28090dd4750e \
+  && git reset --hard 7201dc480134f41dd1be1f8f9b8f8470aac82a3b \
   && git apply /tmp/updates.patch \
   && cp /tmp/init.lua ${XDG_CONFIG_HOME}/nvim/lua/custom/plugins \
   && nvim --headless "+Lazy! sync" +qa