feat: enhance VTour component with default tooltip placement and multi-instance support

- Fix major rendering/positioning/etc bugs
- Added `defaultPlacement` prop to `VTourProps` for tooltip positioning.
- Updated component to use scoped IDs and highlight classes based on the `name` prop.
- Improved CSS visibility handling for backdrop and tooltip elements.
- Refactored tests to accommodate Teleport rendering and scoped IDs.
- Renamed component CSS output to avoid conflicts with SCSS.

Author: AdamDrewsTR

package.json

@@ -64,8 +64,7 @@
     "test:watch": "vitest --watch",
     "lint": "vue-tsc --noEmit && npm run type-check",
     "clean": "rm -rf dist node_modules/.vite",
-    "format": "prettier --write \"**/*.{js,ts,vue}\" --ignore-path .gitignore",
-    "prepare": "npm run build-only"
+    "format": "prettier --write \"**/*.{js,ts,vue}\" --ignore-path .gitignore"
   },
   "dependencies": {
     "jump.js": "^1.0.2",

src/Types.d.ts

@@ -86,6 +86,9 @@ export interface VTourProps {
 
   /** Debounce timeout for resize events in milliseconds */
   readonly resizeTimeout?: number;
+
+  /** Default tooltip placement when step doesn't specify one */
+  readonly defaultPlacement?: NanoPopPosition;
 }
 
 /**