rio 0.2.1

[BrewTestBot]

Created by brew bump

---

Created with brew bump-formula-pr.

release notes

- Fix: Search seems broken in 0.2.0 [#785](https://github.com/raphamorim/rio/issues/785).
- Regular font is now 400 as default weight.
- Support to choosing font width [#507](https://github.com/raphamorim/rio/issues/507).
- Support to multiconfiguration. Rio now allows you to have different configurations per OS, you can write ovewrite `Shell`, `Navigation` and `Window`.
Example:
[shell]
# default (in this case will be used only on MacOS)
program = "/bin/fish"
args = ["--login"]

[platform]
# Microsoft Windows overwrite
windows.shell.program = "pwsh"
windows.shell.args = ["-l"]

# Linux overwrite
linux.shell.program = "tmux"
linux.shell.args = ["new-session", "-c", "/var/www"]

Fix: Grey triangle in the titlebar #778
Update window title straight away (#779 by @hunger)
Always update the title on windows and MacOS (#780 by @hunger)

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