Default `--watcher` by "config ron" file

[daedalus-rwx]

Is your feature request related to a problem? Please describe.
Starting --watcher mode depends on manual input or shell aliasing on the system.

Describe the solution you'd like
Configure default --watcher mode via 'ron' configuration file.

Describe alternatives you've considered
Create an alias in the system shell configuration for gitui --watcher

Additional context

Software version

gitui 0.26.3 (95e1d4d)

Operating system

Linux 6.8.0-39-generic

Compile time information

• Profile: release
• Target triple: x86_64-unknown-linux-musl
• Family: unix
• OS: linux
• Architecture: x86_64
• Pointer width: 64
• Endian: little
• CPU features: fxsr,sse,sse2
• Host: x86_64-unknown-linux-gnu

Environment variables

SHELL=/bin/bash
EDITOR=<not set>
GIT_EDITOR=<not set>
VISUAL=<not set>

Command-line

gitui --bugreport