fix: remove redundant 'use strict'

Modules are always executed in strict mode, so you don't need to include
the 'use strict' directive at the beginning of your module files. This
makes the directive redundant in the context of modules.

src/components/__tests__/button.test.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { JSDOM } from 'jsdom'
 import { Button } from '@components/button'
 

src/components/__tests__/checkbox.test.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { JSDOM } from 'jsdom'
 import { Checkbox } from '@components/checkbox'
 

src/components/__tests__/container.test.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { JSDOM } from 'jsdom'
 import { Container } from '@components/container'
 import { Button } from '@components/button'

src/components/__tests__/modal.test.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { JSDOM } from 'jsdom'
 import { Modal } from '@components/modal'
 import { Button } from '@components/button'

src/components/__tests__/page.test.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { JSDOM } from 'jsdom'
 import { Page } from '@components/page'
 import { Modal } from '@components/modal'

src/components/__tests__/snackbar.test.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { JSDOM } from 'jsdom'
 import { Snackbar } from '@components/snackbar'
 

src/components/__tests__/tab.test.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { JSDOM } from 'jsdom'
 import { Tab } from '@components/tab'
 import { Button } from '@components/button'

src/components/__tests__/textarea.test.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { JSDOM } from 'jsdom'
 import { Textarea } from '@components/textarea'
 

src/components/button.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { isConfigVerified } from '@utilities/config/config-verifier'
 import { setEvents } from '@utilities/components/set-events'
 import { setAttributes } from '@utilities/components/set-attributes'

src/components/checkbox.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { isConfigVerified } from '@utilities/config/config-verifier'
 import { setAttributes } from '@utilities/components/set-attributes'
 

src/components/container.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { isConfigVerified } from '@utilities/config/config-verifier'
 import { setAttributes } from '@utilities/components/set-attributes'
 

src/components/modal.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { isConfigVerified } from '@utilities/config/config-verifier'
 import { setAttributes } from '@utilities/components/set-attributes'
 

src/components/page.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { isConfigVerified } from '@utilities/config/config-verifier'
 import { setAttributes } from '@utilities/components/set-attributes'
 import { Button } from './button'

src/components/snackbar.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { isConfigVerified } from '@utilities/config/config-verifier'
 import { setAttributes } from '@utilities/components/set-attributes'
 

src/components/tab.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { isConfigVerified } from '@utilities/config/config-verifier'
 import { setAttributes } from '@utilities/components/set-attributes'
 

src/components/textarea.js

@@ -1,5 +1,3 @@
-'use strict'
-
 import { isConfigVerified } from '@utilities/config/config-verifier'
 import { setAttributes } from '@utilities/components/set-attributes'