Add new setting modeling.highlightEdges (#2166)

* Add doc comment to getThemeColorForEngine

* Add a user-level setting for highlightEdges

* Add a custom settings action to update the edge line visibility

* Make the settings pane always open to user settings first

* Refactor engineConnectionMananer.start() to take a settings object

* Revert alway open user settings

* Set highlight edges on engine start up

* fmt fml

* Fix tsc error

src/lang/std/engineConnection.ts

@@ -926,7 +926,10 @@ export class EngineCommandManager {
     executeCode,
     token,
     makeDefaultPlanes,
-    theme = Themes.Dark,
+    settings = {
+      theme: Themes.Dark,
+      highlightEdges: true,
+    },
   }: {
     setMediaStream: (stream: MediaStream) => void
     setIsStreamReady: (isStreamReady: boolean) => void
@@ -935,7 +938,10 @@ export class EngineCommandManager {
     executeCode: () => void
     token?: string
     makeDefaultPlanes: () => Promise<DefaultPlanes>
-    theme?: Themes
+    settings?: {
+      theme: Themes
+      highlightEdges: boolean
+    }
   }) {
     this.makeDefaultPlanes = makeDefaultPlanes
     if (width === 0 || height === 0) {
@@ -963,15 +969,21 @@ export class EngineCommandManager {
       },
       onEngineConnectionOpen: () => {
         // Set the stream background color
-        // This takes RGBA values from 0-1
-        // So we convert from the conventional 0-255 found in Figma
-
         this.sendSceneCommand({
           type: 'modeling_cmd_req',
           cmd_id: uuidv4(),
           cmd: {
             type: 'set_background_color',
-            color: getThemeColorForEngine(theme),
+            color: getThemeColorForEngine(settings.theme),
+          },
+        })
+        // Set the edge lines visibility
+        this.sendSceneCommand({
+          type: 'modeling_cmd_req',
+          cmd_id: uuidv4(),
+          cmd: {
+            type: 'edge_lines_visible' as any, // TODO: update kittycad.ts to use the correct type
+            hidden: !settings.highlightEdges,
           },
         })