pane: Ignore max tabs on terminal pane

[vipexv]

Closes #39901

I'm unsure as to which direction the team wants to go with this, but this is the behavior of VSCode which is what this feature is based off so i'm going with this.

Changes:

1. Introduced a new argument to the new method on the Pane called ignore_max_tabs that forces the max_tabs to None if it's true.
2. Added a new test test_bypass_max_tabs_limit.

Release Notes:

• Fixed: max_tabs Setting affecting the terminal pane.

[JosephTLyons]

We discussed adding a test as well to make sure we can open max_tabs + 1 terminal tabs, but if the terminal testing infra isn't there, in the same way it is in pane.rs, we can skip.

[JosephTLyons]

I pushed a few small changes:

1. I renamed ignore_max_tabs to use_max_tabs, to be affirmative (just a personal pref), and also flipped the bools at the call sites.
2. Moved use_max_tabs up in the parameter list, as we tend to always end with window and cx, in methods that use those parameters, just an internal convention.