`globalSummon` a new tab in explorer CWD

Hey,
little question. The quake mode is really nice, but is there a way to automatically open the terminal/quake mode on current focused explorer folder.

For example I have focused an Explorer window in my Downloads directory and then press ctrl+alt+t (my shortcut for quake mode) it should automatically open the console in this directory.

Thanks

_Originally posted by @meydominic in https://github.com/microsoft/terminal/issues/8888#issuecomment-848470679_

I'm not sure that is possible, sorry 😕 When pressing the global hotkey, we don't get any context about the active window.......

ah shoot. okay. So, maybe we could:
* get the foreground window,
* check if it's an `explorer.exe` window,
* then use the hack we're already using for the background context menu to get the path of that window.

That might work. We'd still need a setting for "when this `globalSummon` action is performed, open a new tab with the explorer CWD." That of course leads to "I want to `globalSummon` in explorer and get a new pane" or "I want to `globalSummon` in explorer and new a new pane and have that pane running {profile}"

This deserves it's own thread

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### Summary

A keyboard shortcut to open terminal app in the same path as file explorer window.

Lot of devs who use VS code or similar editors/IDEs are familiar with the shortcut `ctrl + `` to open terminal in the project's path.
Though windows have a right click shortcut for it, the keyboard shortcut is just muscle memory.

_from @MG-LSJ in #17192_

Start by tracing the existing globalSummon action and the background context-menu handling used to obtain an Explorer path. Determine how the foreground Explorer window and its current directory can be identified, then define the setting behavior for opening a tab or pane. Done means the global shortcut opens the terminal in the focused Explorer window's directory.

Written by the indexing model from the issue text.