1. Migrate from `rtx` to `mise`
2. Set most of the tools using `mise`
* Some tools, such as `starship` and `zoxide` are installed locally, so they are available at boot time
3. Improve `tmux` by adding
* resurrect and continuum to record/restore sessions
* better color scheme
4. Setup multiple `elixir-ls` releases using the same repository
5. Upgraded `kickstart.nvim` to latest version
Reviewed-on: #24
