fix: Invalid Email is no longer allowed

[RahulBansal123]

Fixes #5277

Short description of what this resolves:

A User can now no longer add invalid Email Addresses.

Checklist

• I have read the Contribution & Best practices Guide.
• My branch is up-to-date with the Upstream development branch.
• The acceptance, integration, unit tests and linter pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

[vercel]

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[lgtm-com]

This pull request introduces 12 alerts when merging fbc22c7 into aa99edd - view on LGTM.com

new alerts:

• 12 for Useless regular-expression character escape

[codecov]

Codecov Report

Merging #5689 (fbc22c7) into development (5d34f21) will decrease coverage by 0.23%.
The diff coverage is n/a.

@@               Coverage Diff               @@
##           development    #5689      +/-   ##
===============================================
- Coverage        23.72%   23.48%   -0.24%     
===============================================
  Files              498      508      +10     
  Lines             5277     5377     +100     
  Branches            47       47              
===============================================
+ Hits              1252     1263      +11     
- Misses            4017     4106      +89     
  Partials             8        8              

Impacted Files	Coverage Δ
app/utils/validators.js	90.00% <ø> (ø)
app/components/forms/user-payment-info-form.js	26.66% <0.00%> (-1.91%)	⬇️
app/components/modals/modal-base.js	22.85% <0.00%> (-1.39%)	⬇️
app/router.js	100.00% <0.00%> (ø)
app/routes/index.js	78.57% <0.00%> (ø)
app/components/forms/admin/settings/billing.js	0.00% <0.00%> (ø)
app/controllers/events/view/tickets/orders/list.js	0.00% <0.00%> (ø)
.../controllers/events/view/tickets/attendees/list.js	0.00% <0.00%> (ø)
app/components/modals/add-room-modal.js	7.69% <0.00%> (ø)
app/components/modals/room-info-modal.js	0.00% <0.00%> (ø)
... and 10 more

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