[Feature Request]: More Command Line Arguments

### Guidelines

- [X] I have searched the issue tracker for [open](https://github.com/FreeTubeApp/FreeTube/issues?q=is%3Aopen+is%3Aissue) and [closed](https://github.com/FreeTubeApp/FreeTube/issues?q=is%3Aissue+is%3Aclosed) issues that are similar to the feature request I want to file, without success.
- [X] I have searched the [documentation](https://docs.freetubeapp.io/) for information that matches the description of the feature request I want to file, without success.
- [X] This issue contains only one feature request.

### Problem Description

I'd like to be able to use command line arguments with FreeTube

### Proposed Solution

Add the following comnands/arguments

open new window
an argument that opens a new window

search freetube
a command that opens a search with a given query in FreeTube

export subscriptions
a command that exports subscriptions. (Should it export to different files, ex: newpipe subscriptions?)

helpdisplay different commands/arguments available

### Alternatives Considered

Dont add more command line arguments

### Issue Labels

ease of use improvement, improvement to existing feature

### Additional Information

_No response_