command palette2 (#3296)

Still to do:
- [ ] Figure out why `ctrl-g` `ctrl-g` doesn't dismiss GoToLine (but
`cmd-shift-p` `cmd-shift-p` does dismiss Command). Likely to do with the
"Editor" context in the keymap, but this did used to work in gpui1.
- [ ] Fix first render with incorrect matches immediately flashes.
- [ ] Show keybindings
- [x] Figure out why `cmd-shift-p "go to line" enter` panics
- [ ] Fix the selected visuals
- [ ] Party hard
- [ ] Uncomment the tests

Author: ConradIrwin

Cargo.lock

@@ -20,6 +20,7 @@ members = [
     "crates/collab_ui",
     "crates/collections",
     "crates/command_palette",
+    "crates/command_palette2",
     "crates/component_test",
     "crates/context_menu",
     "crates/copilot",
@@ -110,7 +111,8 @@ members = [
     "crates/xtask",
     "crates/zed",
     "crates/zed2",
-    "crates/zed-actions"
+    "crates/zed-actions",
+    "crates/zed_actions2"
 ]
 default-members = ["crates/zed"]
 resolver = "2"

Cargo.toml

@@ -0,0 +1,34 @@
+[package]
+name = "command_palette2"
+version = "0.1.0"
+edition = "2021"
+publish = false
+
+[lib]
+path = "src/command_palette.rs"
+doctest = false
+
+[dependencies]
+collections = { path = "../collections" }
+editor = { package = "editor2", path = "../editor2" }
+fuzzy = { package = "fuzzy2", path = "../fuzzy2" }
+gpui = { package = "gpui2", path = "../gpui2" }
+picker = { package = "picker2", path = "../picker2" }
+project = { package = "project2", path = "../project2" }
+settings = { package = "settings2", path = "../settings2" }
+ui = { package = "ui2", path = "../ui2" }
+util = { path = "../util" }
+theme = { package = "theme2", path = "../theme2" }
+workspace = { package="workspace2", path = "../workspace2" }
+zed_actions = { package = "zed_actions2", path = "../zed_actions2" }
+anyhow.workspace = true
+serde.workspace = true
+[dev-dependencies]
+gpui = { package = "gpui2", path = "../gpui2", features = ["test-support"] }
+editor = { package = "editor2", path = "../editor2", features = ["test-support"] }
+language = { package="language2", path = "../language2", features = ["test-support"] }
+project = { package="project2", path = "../project2", features = ["test-support"] }
+serde_json.workspace = true
+workspace = { package="workspace2", path = "../workspace2", features = ["test-support"] }
+ctor.workspace = true
+env_logger.workspace = true