assistant2: Add button to open the prompt library (#23500)

This PR adds a button to open the prompt library from the configuration
view in Assistant2.

<img width="1309" alt="Screenshot 2025-01-22 at 5 38 08 PM"
src="https://github.com/user-attachments/assets/d514abca-53bc-4cde-bead-ab68a1994fb5"
/>

Release Notes:

- N/A

crates/assistant/src/assistant.rs

@@ -33,7 +33,6 @@ actions!(
     [
         InsertActivePrompt,
         DeployHistory,
-        DeployPromptLibrary,
         NewContext,
         CycleNextInlineAssist,
         CyclePreviousInlineAssist

crates/assistant/src/assistant_panel.rs

@@ -1,7 +1,6 @@
 use crate::assistant_configuration::{ConfigurationView, ConfigurationViewEvent};
 use crate::{
-    terminal_inline_assistant::TerminalInlineAssistant, DeployHistory, DeployPromptLibrary,
-    InlineAssistant, NewContext,
+    terminal_inline_assistant::TerminalInlineAssistant, DeployHistory, InlineAssistant, NewContext,
 };
 use anyhow::{anyhow, Result};
 use assistant_context_editor::{
@@ -38,7 +37,7 @@ use workspace::{
     dock::{DockPosition, Panel, PanelEvent},
     pane, DraggedSelection, Pane, ShowConfiguration, ToggleZoom, Workspace,
 };
-use zed_actions::assistant::{InlineAssist, ToggleFocus};
+use zed_actions::assistant::{DeployPromptLibrary, InlineAssist, ToggleFocus};
 
 pub fn init(cx: &mut AppContext) {
     workspace::FollowableViewRegistry::register::<ContextEditor>(cx);