debugger: Add 'open docs' button in the panel and mention onboarding in the docs (#32496)

Closes #ISSUE

Release Notes:

- N/A

assets/icons/circle_help.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-circle-help-icon lucide-circle-help"><circle cx="12" cy="12" r="10"/><path d="M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3"/><path d="M12 17h.01"/></svg>

crates/debugger_ui/src/debugger_panel.rs

@@ -605,6 +605,12 @@ impl DebugPanel {
                     }
                 })
         };
+        let documentation_button = || {
+            IconButton::new("debug-open-documentation", IconName::CircleHelp)
+                .icon_size(IconSize::Small)
+                .on_click(move |_, _, cx| cx.open_url("https://zed.dev/docs/debugger"))
+                .tooltip(Tooltip::text("Open Documentation"))
+        };
 
         Some(
             div.border_b_1()
@@ -840,7 +846,10 @@ impl DebugPanel {
                             ),
                         )
                         .justify_around()
-                        .when(is_side, |this| this.child(new_session_button())),
+                        .when(is_side, |this| {
+                            this.child(new_session_button())
+                                .child(documentation_button())
+                        }),
                 )
                 .child(
                     h_flex()
@@ -881,7 +890,10 @@ impl DebugPanel {
                                     window,
                                     cx,
                                 ))
-                                .when(!is_side, |this| this.child(new_session_button())),
+                                .when(!is_side, |this| {
+                                    this.child(new_session_button())
+                                        .child(documentation_button())
+                                }),
                         ),
                 ),
         )

crates/icons/src/icons.rs

@@ -60,6 +60,7 @@ pub enum IconName {
     ChevronUpDown,
     Circle,
     CircleOff,
+    CircleHelp,
     Clipboard,
     Close,
     Cloud,

docs/src/debugger.md

@@ -6,26 +6,29 @@ It allows Zed to support various debuggers without needing to implement language
 This protocol enables features like setting breakpoints, stepping through code, inspecting variables,
 and more, in a consistent manner across different programming languages and runtime environments.
 
+> We currently offer onboarding support for users. We are eager to hear from you if you encounter any issues or have suggestions for improvement for our debugging experience.
+> You can schedule a call via [Cal.com](https://cal.com/team/zed-research/debugger)
+
 ## Supported Debug Adapters
 
-Zed supports a variety of debug adapters for different programming languages:
+Zed supports a variety of debug adapters for different programming languages out of the box:
 
-- JavaScript (node): Enables debugging of Node.js applications, including setting breakpoints, stepping through code, and inspecting variables in JavaScript.
+- JavaScript ([vscode-js-debug](https://github.com/microsoft/vscode-js-debug.git)): Enables debugging of Node.js applications, including setting breakpoints, stepping through code, and inspecting variables in JavaScript.
 
-- Python (debugpy): Provides debugging capabilities for Python applications, supporting features like remote debugging, multi-threaded debugging, and Django/Flask application debugging.
+- Python ([debugpy](https://github.com/microsoft/debugpy.git)): Provides debugging capabilities for Python applications, supporting features like remote debugging, multi-threaded debugging, and Django/Flask application debugging.
 
-- LLDB: A powerful debugger for C, C++, Objective-C, and Swift, offering low-level debugging features and support for Apple platforms.
+- LLDB ([CodeLLDB](https://github.com/vadimcn/codelldb.git)): A powerful debugger for C, C++, Objective-C, and Swift, offering low-level debugging features and support for Apple platforms.
 
-- GDB: The GNU Debugger, which supports debugging for multiple programming languages including C, C++, Go, and Rust, across various platforms.
+- GDB ([GDB](https://sourceware.org/gdb/)): The GNU Debugger, which supports debugging for multiple programming languages including C, C++, Go, and Rust, across various platforms.
 
-- Go (dlv): Delve, a debugger for the Go programming language, offering both local and remote debugging capabilities with full support for Go's runtime and standard library.
+- Go ([Delve](https://github.com/go-delve/delve)): Delve, a debugger for the Go programming language, offering both local and remote debugging capabilities with full support for Go's runtime and standard library.
 
-- PHP (xdebug): Provides debugging and profiling capabilities for PHP applications, including remote debugging and code coverage analysis.
+- PHP ([Xdebug](https://xdebug.org/)): Provides debugging and profiling capabilities for PHP applications, including remote debugging and code coverage analysis.
+
+- Ruby ([rdbg](https://github.com/ruby/debug)): Provides debugging for Ruby.
 
 These adapters enable Zed to provide a consistent debugging experience across multiple languages while leveraging the specific features and capabilities of each debugger.
 
-Additionally, Ruby support (via rdbg) is being actively worked on.
-
 ## Getting Started
 
 For basic debugging, you can set up a new configuration by opening the `New Session Modal` either via the `debugger: start` (default: f4) or by clicking the plus icon at the top right of the debug panel.