Part of https://github.com/zed-industries/zed/issues/16472
* Adds debug logging to everywhere near INSERT/UPDATEs in the DB
So something like
`env RUST_LOG=debug,wasmtime_cranelift=off,cranelift_codegen=off,vte=off
cargo run` could be used to view these (current zlog seems to process
the exclusions odd, so not sure this is the optimal RUST_LOG line) can
be used to debug any further writes.
* Removes excessive window stack serialization
Previously, it serialized unconditionally every 100ms.
Now, only if the stack had changed, which is now check every 500ms.
* Removes excessive terminal serialization
Previously, it serialized its `cwd` on every `ItemEvent::UpdateTab`
which was caused by e.g. any character output.
Now, only if the `cwd` has changed at the next event processing time.
Release Notes:
- Fixed more excessive DB writes
f106dfca42