fix(VTextField): remove erroneous white space for outlined style

[piktur]

Description

Removes erroneous whitespace in VTextField legend

Motivation and Context

Chrome auto-translate replaces whitespace with non-whitespace characters ie. when translated to French (France) this character becomes "La"

How Has This Been Tested?

Visually

Markup:

// Paste your FULL Playground.vue here

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Improvement/refactoring (non-breaking change that doesn't add any features but makes things better)

Checklist:

• The PR title is no longer than 64 characters.
• The PR is submitted to the correct branch (master for bug fixes and documentation updates, dev for new features and backwards compatible changes and next for non-backwards compatible changes).
• My code follows the code style of this project.
• I've added relevant changes to the documentation (applies to new features and breaking changes in core library)

[johnleider]

Please provide a Playground that depicts the issue.

[piktur]

@johnleider Thanks for your reponse.

In order to replicate the issue:

• Visit https://vuetifyjs.com/en/components/text-fields/#text-fields
• Using Chrome, set language chrome://settings/languages to French (France)
• Enable "Always Translate English"

Then you will see

[johnleider]

Didn't catch this the related issue.

fixes #11747