Extract title_bar crate (#13597)

This PR extracts a singular title bar (`title_bar::TitleBar`) from
`ui::TitleBar` and
`collab_ui::collab_titlebar_item::CollabTitlebarItem`.

This is a first step towards organizing title bar things into one place,
and standardizing platform titlebar/window control implementations.

Release Notes:

- N/A

Cargo.lock

@@ -2551,18 +2551,13 @@ name = "collab_ui"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "auto_update",
  "call",
  "channel",
  "client",
  "collections",
- "command_palette",
  "db",
- "dev_server_projects",
  "editor",
  "emojis",
- "extensions_ui",
- "feedback",
  "futures 0.3.28",
  "fuzzy",
  "gpui",
@@ -2575,7 +2570,6 @@ dependencies = [
  "picker",
  "pretty_assertions",
  "project",
- "recent_projects",
  "release_channel",
  "rich_text",
  "rpc",
@@ -2587,15 +2581,14 @@ dependencies = [
  "smallvec",
  "story",
  "theme",
- "theme_selector",
  "time",
  "time_format",
+ "title_bar",
  "tree-sitter-markdown",
  "ui",
  "util",
  "vcs_menu",
  "workspace",
- "zed_actions",
 ]
 
 [[package]]
@@ -11046,6 +11039,41 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
+[[package]]
+name = "title_bar"
+version = "0.1.0"
+dependencies = [
+ "auto_update",
+ "call",
+ "client",
+ "collections",
+ "command_palette",
+ "dev_server_projects",
+ "editor",
+ "extensions_ui",
+ "feedback",
+ "gpui",
+ "http 0.1.0",
+ "notifications",
+ "pretty_assertions",
+ "project",
+ "recent_projects",
+ "rpc",
+ "serde",
+ "settings",
+ "smallvec",
+ "story",
+ "theme",
+ "theme_selector",
+ "tree-sitter-markdown",
+ "ui",
+ "util",
+ "vcs_menu",
+ "windows 0.57.0",
+ "workspace",
+ "zed_actions",
+]
+
 [[package]]
 name = "tokio"
 version = "1.37.0"