Add "Open in Terminal" context menu entries for project panel, editor and tab context menus (#10741)

Closes https://github.com/zed-industries/zed/issues/4566

Pane tabs (does not exist for multibuffer tabs):
<img width="439" alt="Screenshot 2024-04-18 at 23 01 08"
src="https://github.com/zed-industries/zed/assets/2690773/3af79ed8-07ea-4cf2-bcf9-735b1b3be8c4">

Editor context menu:
<img width="404" alt="Screenshot 2024-04-18 at 23 01 14"
src="https://github.com/zed-industries/zed/assets/2690773/38ea7afc-df2b-45ef-8331-eb6a4588af9f">

Project panel context menu (was not shown for file entries before this):
<img width="408" alt="Screenshot 2024-04-18 at 23 01 18"
src="https://github.com/zed-industries/zed/assets/2690773/e336fce1-7da0-4671-b8d2-8d3409c23eb6">

Release Notes:

- (breaking change) Moved `project_panel::OpenInTerminal` into
`workspace::OpenInTerminal` action and add it in editors, tab context
menus and proper panel file entries
([4566](https://github.com/zed-industries/zed/issues/4566))

crates/project_panel/src/project_panel.rs

@@ -37,7 +37,7 @@ use util::{maybe, NumericPrefixWithSuffix, ResultExt, TryFutureExt};
 use workspace::{
     dock::{DockPosition, Panel, PanelEvent},
     notifications::DetachAndPromptErr,
-    Workspace,
+    OpenInTerminal, Workspace,
 };
 
 const PROJECT_PANEL_KEY: &str = "ProjectPanel";
@@ -127,7 +127,6 @@ actions!(
         CopyPath,
         CopyRelativePath,
         RevealInFinder,
-        OpenInTerminal,
         Cut,
         Paste,
         Rename,
@@ -441,9 +440,7 @@ impl ProjectPanel {
                             .action("New Folder", Box::new(NewDirectory))
                             .separator()
                             .action("Reveal in Finder", Box::new(RevealInFinder))
-                            .when(is_dir, |menu| {
-                                menu.action("Open in Terminal…", Box::new(OpenInTerminal))
-                            })
+                            .action("Open in Terminal", Box::new(OpenInTerminal))
                             .when(is_dir, |menu| {
                                 menu.separator()
                                     .action("Find in Folder…", Box::new(NewSearchInDirectory))
@@ -1131,13 +1128,20 @@ impl ProjectPanel {
 
     fn open_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
         if let Some((worktree, entry)) = self.selected_entry(cx) {
-            let path = worktree.abs_path().join(&entry.path);
-            cx.dispatch_action(
-                workspace::OpenTerminal {
-                    working_directory: path,
+            let abs_path = worktree.abs_path().join(&entry.path);
+            let working_directory = if entry.is_dir() {
+                Some(abs_path)
+            } else {
+                if entry.is_symlink {
+                    abs_path.canonicalize().ok()
+                } else {
+                    Some(abs_path)
                 }
-                .boxed_clone(),
-            )
+                .and_then(|path| Some(path.parent()?.to_path_buf()))
+            };
+            if let Some(working_directory) = working_directory {
+                cx.dispatch_action(workspace::OpenTerminal { working_directory }.boxed_clone())
+            }
         }
     }