docs(svelte): simplify setup guide by removing babel

Author: mihar-22

docs/svelte-testing-library/example.md

@@ -30,7 +30,7 @@ import '@testing-library/jest-dom/extend-expect'
 
 import { render, fireEvent } from '@testing-library/svelte'
 
-import Comp from '../Comp.svelte'
+import Comp from '../Comp'
 
 test('shows proper heading when rendered', () => {
  const { getByText } = render(Comp, { props: { name: 'World' } })

docs/svelte-testing-library/setup.md

@@ -9,10 +9,10 @@ with any testing framework and runner you're comfortable with.
 
 ## Jest
 
-1. Install Jest and Babel
+1. Install Jest
 
  ```
- npm install --save-dev jest babel-jest @babel/core @babel/preset-env
+ npm install --save-dev jest
  ```
 
 2. Add the following to your `package.json`
@@ -26,55 +26,46 @@ with any testing framework and runner you're comfortable with.
  }
  ```
 
-3. Add a `.babelrc` with the following
-
- ```json
- {
- "presets": [["@babel/preset-env", { "targets": { "node": "current" } }]]
- }
- ```
-
-4. You'll need to compile the Svelte components before using them in Jest, so
+3. You'll need to compile the Svelte components before using them in Jest, so
  we need to install
  [jest-transform-svelte](https://github.com/rspieker/jest-transform-svelte)
 
  ```
  npm install --save-dev jest-transform-svelte
  ```
 
-5. Add the following Jest configuration to your `package.json`
+4. Add the following Jest configuration to your `package.json`
 
  ```json
  {
  "jest": {
  "transform": {
- "^.+\\.js$": "babel-jest",
  "^.+\\.svelte$": "jest-transform-svelte"
  },
- "moduleFileExtensions": ["js", "json", "svelte"]
+ "moduleFileExtensions": ["js", "svelte"]
  }
  }
  ```
 
-6. This is optional but it is recommended, you can install
+5. This is optional but it is recommended, you can install
  [jest-dom](https://github.com/testing-library/jest-dom) to add handy
  assertions to Jest
 
- 6.1 Install jest-dom
+ 5.1 Install jest-dom
 
  ```
  npm install --save-dev @testing-library/jest-dom
  ```
 
- 6.2 Add the following to your Jest configuration in `package.json`
+ 5.2 Add the following to your Jest configuration in `package.json`
 
  ```json
  {
  "setupFilesAfterEnv": ["@testing-library/jest-dom/extend-expect"]
  }
  ```
 
-7. Create your component + test file (checkout the rest of the docs to see how)
+6. Create your component + test file (checkout the rest of the docs to see how)
  and run it
 
  ```