Log an error when there are no buffer snapshots for some LSP version

[mgsloan]

I'm hoping this will bring more visibility to issues related to keeping track of what version of code the LSP has:

• I've seen diagnostic ranges not appearing in the correct places.

• There have also been reports of edits from language servers misapplying. This might bring more visibility to the issue - it doesn't seem good to silently use the current version of the buffer.

Release Notes:

• N/A

[mrnugget]

When I run this against a normal main.go file and save to format, I get this on every save:

[2025-01-10T10:02:34+01:00 ERROR project::lsp_store] No LSP snapshots found for buffer with path "main.go"

I also get this at the start with Rust files:

[2025-01-10T10:04:27+01:00 ERROR project::lsp_store] No LSP snapshots found for buffer with path "src/main.rs"
[2025-01-10T10:04:27+01:00 ERROR project] content modified
[2025-01-10T10:04:27+01:00 ERROR editor] content modified
[2025-01-10T10:04:41+01:00 ERROR project::lsp_store] No LSP snapshots found for buffer with path "src/main.rs"

Subsequent saves with Rust don't produce them though.