Fix walkthrough assets not available in build (#127)

Author: Splines

src/walkthrough/commands.svg renamed to assets/walkthrough/commands.svg

@@ -181,7 +181,7 @@
             "title": "Check Manim Installation",
             "description": "Let's see if you have installed ManimGL.\n[Check Manim version](command:manim-notebook.redetectManimVersion)\n[Open installation guide](https://3b1b.github.io/manim/getting_started/installation.html)",
             "media": {
-              "markdown": "src/walkthrough/manim-installation.md"
+              "markdown": "assets/walkthrough/manim-installation.md"
             },
             "completionEvents": [
               "onCommand:manim-notebook.redetectManimVersion"
@@ -192,7 +192,7 @@
             "title": "Start with an example",
             "description": "Open an example file to see how Manim Notebook works.\n[Open Sample](command:manim-notebook-walkthrough.openSample)",
             "media": {
-              "svg": "src/walkthrough/preview-cell.svg",
+              "svg": "assets/walkthrough/preview-cell.svg",
               "altText": "Preview Manim Cell"
             },
             "completionEvents": [
@@ -204,7 +204,7 @@
             "title": "Show all available commands",
             "description": "Get a list of all available commands in Manim Notebook.\n[Show Commands](command:manim-notebook-walkthrough.showCommands)",
             "media": {
-              "svg": "src/walkthrough/commands.svg",
+              "svg": "assets/walkthrough/commands.svg",
               "altText": "Manim Notebook commands"
             },
             "completionEvents": [
@@ -216,7 +216,7 @@
             "title": "Show keyboard shortcuts",
             "description": "See all available keyboard shortcuts in Manim Notebook and modify them to whatever you like.\n[Show Shortcuts](command:manim-notebook-walkthrough.showShortcuts)",
             "media": {
-              "svg": "src/walkthrough/shortcuts.svg",
+              "svg": "assets/walkthrough/shortcuts.svg",
               "altText": "Manim Notebook keyboard shortcuts"
             },
             "completionEvents": [
@@ -228,7 +228,7 @@
             "title": "Show settings",
             "description": "Customize your Manim Notebook experience by changing settings.\n[Show Settings](command:manim-notebook-walkthrough.showSettings)",
             "media": {
-              "svg": "src/walkthrough/settings.svg",
+              "svg": "assets/walkthrough/settings.svg",
               "altText": "Manim Notebook settings"
             },
             "completionEvents": [
@@ -240,7 +240,7 @@
             "title": "Open Wiki",
             "description": "Learn more about Manim Notebook on the GitHub Wiki.\n[Open Wiki](command:manim-notebook-walkthrough.openWiki)",
             "media": {
-              "svg": "src/walkthrough/wiki.svg",
+              "svg": "assets/walkthrough/wiki.svg",
               "altText": "Manim Notebook Wiki"
             },
             "completionEvents": [

src/walkthrough/manim-installation.md renamed to assets/walkthrough/manim-installation.md

@@ -6,7 +6,7 @@ import { previewManimCell, reloadAndPreviewManimCell, previewCode } from "./prev
 import { startScene, exitScene } from "./startStopScene";
 import { exportScene } from "./export";
 import { Logger, Window, LogRecorder } from "./logger";
-import { registerWalkthroughCommands } from "./walkthrough/commands";
+import { registerWalkthroughCommands } from "./walkthrough";
 import { ExportSceneCodeLens } from "./export";
 import { determineManimVersion } from "./manimVersion";
 import { setupTestEnvironment } from "./utils/testing";

src/walkthrough/preview-cell.svg renamed to assets/walkthrough/preview-cell.svg

@@ -1,6 +1,6 @@
 import * as vscode from "vscode";
 import { ExtensionContext, window, workspace, commands } from "vscode";
-import { Logger } from "../logger";
+import { Logger } from "./logger";
 import fs from "fs";
 import path from "path";
 
@@ -55,7 +55,7 @@ export function registerWalkthroughCommands(context: ExtensionContext) {
  */
 async function openSampleFile(context: ExtensionContext) {
   const sampleFilePath = path.join(context.extensionPath,
-    "src", "walkthrough", "sample_scene.py");
+    "assets", "walkthrough", "sample_scene.py");
   const sampleFileContent = fs.readFileSync(sampleFilePath, "utf-8");
 
   const sampleFile = await workspace.openTextDocument({