Feat: User should not have to add the arguments while opening configx.

[aayank13]

Currently:
User have to choose pass the arguments in terminal for dry run and saving the config.

Eg.
configx --dry-run
or
configx --output ~/Desktop/my-nvim

Recommended:
We should directly open the configx using the terminal and should not allow user to pass any args. After the TUI opens, user can select the mode for either saving the config (asking the path for saving the config) or just dry run.