Add import/export of triggers as .it2triggers files

🐛 fix(minifilter): set correct font for search menu template (#643)

Turn off unnecessary diagnostics

Render underlines in metal using three passes instead of drawing underlines at text at the same time.

Tweak Open Quickly glass effect tint and sync window appearance with theme

Fix thread-safety crash in HFS+ Unicode normalization

Tweak jobs tool column widths

Fix positioning of signal sending button and popup in jobs tree view

Don't use glass effect in jobs tool when it's in the toolbelt

Encode savedIntervalTree using graph encoding to avoid hang when saving restorable state

Avoid calling -[iTermMetalLayerBox allowsNextDrawableTimeout] on the main thread because it waits on the same mutex as nextDrawable. It should be totally safe to do that in the getDrawableQueue.

Add terminal rendering comparison tool and test infrastructure

Try to fix add_file_to_xcodeproj.rb to not make unneeded groups for tests

Triggers now treat nulls as spaces for regex matching. Fixes claude code problems because they like to move the cursor instead of printing a space

Harden SSH integration against hypothetical in-band signaling abuse