Fix broken collaboration UI from #18308 (#18372)

Fixes a bug introduced by #18308, that caused the call controls to
render incorrectly.

Release Notes:

- N/A

crates/title_bar/src/collab.rs

@@ -284,14 +284,14 @@ impl TitleBar {
 
         let room = room.read(cx);
         let project = self.project.read(cx);
+        let is_local = project.is_local() || project.is_via_ssh();
         let is_dev_server_project = project.dev_server_project_id().is_some();
-        let is_shared = project.is_shared();
+        let is_shared = (is_local || is_dev_server_project) && project.is_shared();
         let is_muted = room.is_muted();
         let is_deafened = room.is_deafened().unwrap_or(false);
         let is_screen_sharing = room.is_screen_sharing();
         let can_use_microphone = room.can_use_microphone();
-        let can_share_projects = room.can_share_projects()
-            && (is_dev_server_project || project.is_local() || project.is_via_ssh());
+        let can_share_projects = room.can_share_projects();
         let platform_supported = match self.platform_style {
             PlatformStyle::Mac => true,
             PlatformStyle::Linux | PlatformStyle::Windows => false,
@@ -299,7 +299,7 @@ impl TitleBar {
 
         let mut children = Vec::new();
 
-        if can_share_projects {
+        if (is_local || is_dev_server_project) && can_share_projects {
             children.push(
                 Button::new(
                     "toggle_sharing",