chore: use codegen-units=1 for small crates (#20558)

These 500ms we'll save with this change will surely pay off.

Release Notes:

- N/A

Cargo.toml

@@ -562,6 +562,47 @@ rustybuzz = { opt-level = 3 }
 ttf-parser = { opt-level = 3 }
 wasmtime-cranelift = { opt-level = 3 }
 wasmtime = { opt-level = 3 }
+# Build single-source-file crates with cg=1 as it helps make `cargo build` of a whole workspace a bit faster
+activity_indicator = {codegen-units = 1}
+assets = {codegen-units = 1}
+breadcrumbs = {codegen-units = 1}
+collections = {codegen-units = 1}
+command_palette = {codegen-units = 1}
+command_palette_hooks = {codegen-units = 1}
+dev_server_projects = {codegen-units = 1}
+evals = {codegen-units = 1}
+extension_cli = {codegen-units = 1}
+feature_flags = {codegen-units = 1}
+file_icons = {codegen-units = 1}
+fsevent = {codegen-units = 1}
+image_viewer = {codegen-units = 1}
+inline_completion_button = {codegen-units = 1}
+install_cli = {codegen-units = 1}
+journal = {codegen-units = 1}
+menu = {codegen-units = 1}
+notifications = {codegen-units = 1}
+ollama = {codegen-units = 1}
+outline = {codegen-units = 1}
+paths = {codegen-units = 1}
+prettier = {codegen-units = 1}
+project_symbols = {codegen-units = 1}
+refineable = {codegen-units = 1}
+release_channel = {codegen-units = 1}
+reqwest_client = {codegen-units = 1}
+rich_text = {codegen-units = 1}
+semantic_version = {codegen-units = 1}
+session = {codegen-units = 1}
+snippet = {codegen-units = 1}
+snippets_ui = {codegen-units = 1}
+sqlez_macros = {codegen-units = 1}
+story = {codegen-units = 1}
+supermaven_api = {codegen-units = 1}
+telemetry_events = {codegen-units = 1}
+theme_selector = {codegen-units = 1}
+time_format = {codegen-units = 1}
+ui_input = {codegen-units = 1}
+vcs_menu = {codegen-units = 1}
+zed_actions = {codegen-units = 1}
 
 [profile.release]
 debug = "limited"