Add initial vim mode mode switching

Co-authored-by: Nathan Sobo <nathan@zed.dev>

crates/zed/Cargo.toml

@@ -55,6 +55,7 @@ text = { path = "../text" }
 theme = { path = "../theme" }
 theme_selector = { path = "../theme_selector" }
 util = { path = "../util" }
+vim = { path = "../vim" }
 workspace = { path = "../workspace" }
 anyhow = "1.0.38"
 async-compression = { version = "0.3", features = ["gzip", "futures-bufread"] }

crates/zed/src/main.rs

@@ -78,6 +78,7 @@ fn main() {
         project_panel::init(cx);
         diagnostics::init(cx);
         search::init(cx);
+        vim::init(cx);
         cx.spawn({
             let client = client.clone();
             |cx| async move {