repl: Enable jupyter by default, allow disabling (#14985)

Enables the jupyter feature by default, which is shown only when we have
a kernelspec or know that we (can) support it well (Python,
Deno/TypeScript).

Release Notes:

- N/A

---------

Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>

crates/editor/src/editor.rs

@@ -1953,7 +1953,7 @@ impl Editor {
             EditorMode::Full => "full",
         };
 
-        if EditorSettings::get_global(cx).jupyter.enabled {
+        if EditorSettings::jupyter_enabled(cx) {
             key_context.add("jupyter");
         }
 

crates/editor/src/editor_settings.rs

@@ -28,7 +28,6 @@ pub struct EditorSettings {
     pub search_wrap: bool,
     pub auto_signature_help: bool,
     pub show_signature_help_after_edits: bool,
-    #[serde(default)]
     pub jupyter: Jupyter,
 }
 
@@ -69,15 +68,23 @@ pub enum DoubleClickInMultibuffer {
     Open,
 }
 
-#[derive(Default, Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
-#[serde(rename_all = "snake_case")]
+#[derive(Debug, Clone, Deserialize)]
 pub struct Jupyter {
     /// Whether the Jupyter feature is enabled.
     ///
-    /// Default: `false`
+    /// Default: true
     pub enabled: bool,
 }
 
+#[derive(Default, Copy, Clone, Debug, Serialize, Deserialize, PartialEq, Eq, JsonSchema)]
+#[serde(rename_all = "snake_case")]
+pub struct JupyterContent {
+    /// Whether the Jupyter feature is enabled.
+    ///
+    /// Default: true
+    pub enabled: Option<bool>,
+}
+
 #[derive(Copy, Clone, Debug, Serialize, Deserialize, JsonSchema, PartialEq, Eq)]
 pub struct Toolbar {
     pub breadcrumbs: bool,
@@ -247,7 +254,7 @@ pub struct EditorSettingsContent {
     pub show_signature_help_after_edits: Option<bool>,
 
     /// Jupyter REPL settings.
-    pub jupyter: Option<Jupyter>,
+    pub jupyter: Option<JupyterContent>,
 }
 
 // Toolbar related settings
@@ -318,6 +325,12 @@ pub struct GutterContent {
     pub folds: Option<bool>,
 }
 
+impl EditorSettings {
+    pub fn jupyter_enabled(cx: &AppContext) -> bool {
+        EditorSettings::get_global(cx).jupyter.enabled
+    }
+}
+
 impl Settings for EditorSettings {
     const KEY: Option<&'static str> = None;