add cmd-line argument for 'enable_selector'

[superiums]

enable_selector now could only be defined in config, but how if we both need enable and disable? i use it with lf, sometimes i need to enable select, and sometimes not.

also hope to add an argument to read the selector from cmdline. instead of config file. in this way, it's more flexiable to use diffenrent selector for different enviroment.

[Anomalocaridid]

That's a good idea.

Just so I can understand your request a bit better, could you tell me a bit more your particular use case? Like in what situations do you want a selector and in what situations do you not want one? Also what environments are you referring to that would require using different selectors?

Also how are you using handlr with lf? I have never used lf, so I am not familiar with it.

[superiums]

lf is a pretty file manager with TUI , it's the most flexiable one , also similar ones are: ranger, nnn, jushuto, yazi, felix ....

my use case:

• open with selection this works like 'open with' menu in GUI file manager. you have more choice , for example, a video, you may choose shotcut/olive/.... any tool to edit it. or different browser to open html file for some purpose.

• open without selection this works like double click to open in GUI file manager. it's fast and no need to choose. just use default one in mime.

• with different selector in lf or other TUI , i prefer to use fzf to choose. in spacefm , thunar or other GUI, i prefer to use wofi or fuzzel to choose.

[Anomalocaridid]

Command-line flags to enable/disable the selector and override the selector command have been added.

There's still a handful of things I have planned before I make a new release, so it'll be a bit longer.