[1.23] PatternTree crash after closing two panes in oen tab

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### Windows Terminal version

Canary 2851

### Windows build number

_No response_

### Other Software

_No response_

### Steps to reproduce

Dunno - closed two shells inside panes in the same tab with `^D`

### Expected Behavior

_No response_

### Actual Behavior

```
Microsoft.Terminal.Control.dll!Microsoft::Console::Render::Renderer::TriggerRedraw(const Microsoft::Console::Types::Viewport & region) Line 262 C++
Microsoft.Terminal.Control.dll!Microsoft::Terminal::Core::Terminal::_InvalidateFromCoords(const til::point start, const til::point end) Line 808 C++
[Inline Frame] Microsoft.Terminal.Control.dll!Microsoft::Terminal::Core::Terminal::_InvalidatePatternTree::__l2::::operator()(const interval_tree::Interval &) Line 774 C++
> [Inline Frame] Microsoft.Terminal.Control.dll!std::for_each(std::_Vector_const_iterator>>>) Line 435 C++
Microsoft.Terminal.Control.dll!interval_tree::IntervalTree::visit_all<`Microsoft::Terminal::Core::Terminal::_InvalidatePatternTree'::`2'::>(Microsoft::Terminal::Core::Terminal::_InvalidatePatternTree::__l2:: f) Line 308 C++
[Inline Frame] Microsoft.Terminal.Control.dll!Microsoft::Terminal::Core::Terminal::_InvalidatePatternTree() Line 771 C++
Microsoft.Terminal.Control.dll!Microsoft::Terminal::Core::Terminal::UpdatePatternsUnderLock() Line 1192 C++
Microsoft.Terminal.Control.dll!winrt::Microsoft::Terminal::Control::implementation::ControlCore::_setupDispatcherAndCallbacks::__l2::::operator()() Line 200 C++
[Inline Frame] Microsoft.Terminal.Control.dll!std::_Func_class::operator()() Line 920 C++
[Inline Frame] Microsoft.Terminal.Control.dll!std::invoke(std::function &) Line 1704 C++
[Inline Frame] Microsoft.Terminal.Control.dll!std::_Apply_impl(std::function &) Line 1076 C++
[Inline Frame] Microsoft.Terminal.Control.dll!std::apply(std::function &) Line 1087 C++
[Inline Frame] Microsoft.Terminal.Control.dll!til::throttled_func<1,0>::_trailing_edge() Line 196 C++
Microsoft.Terminal.Control.dll!til::throttled_func<1,0>::_timer_callback(_TP_CALLBACK_INSTANCE * __formal, void * context, _TP_TIMER * __formal) Line 184 C++
```

Start with Terminal::_InvalidatePatternTree and UpdatePatternsUnderLock in the Microsoft.Terminal.Control.dll stack trace, focusing on lines 771-808 and Renderer::TriggerRedraw at line 262. Try reproducing the crash by closing two shells in panes within one tab using Ctrl+D; done means the operation no longer crashes Windows Terminal.

Written by the indexing model from the issue text.