Destructive behaviors shouldn't be unconfigurable: add configuration to "tab close with middle click"

[eugenesvk]

Summary

Desctructive actions should always be configurable, even less critical ones like closing a tab on (middle) mouse click

Description

A recent update added an unconditional destructive action to close a tab on middle mouse click #41628.
But similar to the "cross" close icon, it breaks the potential to enable nondestructive mouse interaction in Zed (you can disable the "close" icon) - e.g., when you scroll the tab bar and accidentally middle-click the tab is closed.

DESCRIPTION_HERE

Steps to reproduce:
N/a, the bug is in the new breaking behavior without a fallback

Expected Behavior:
Ability to disable tab close on mouse middle click

Actual Behavior:
It's always on

Zed Version and System Specs

Zed: v0.213.0 (Zed Dev 2bcfc12)
OS: Windows 10.0.26100
Memory: 12 GiB
Architecture: x86_64
GPU: NVIDIA GeForce GTX 750 || NVIDIA Corporation || 576.2 r575_92

If applicable, attach your Zed.log file to this issue.

Zed.log