fix(a11y): Fix broken lang attribute

[aaryanporwal]

Done

• Replaced lang=" en" to lang="en".
• This fixes the accessibility error "Language missing or invalid" detected using WAVE.

QA

• Check out this feature branch
• Run the site using the command ./run serve or dotrun
• View the site locally in your web browser at: http://0.0.0.0:8001/
  • Be sure to test on mobile, tablet and desktop screen sizes
• Check markup of any website on ubuntu.com and check if lang attribute is correctly set and valid.

Issue / Card

Fixes #

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[webteam-app]

Demo

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demos.haus

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.63%. Comparing base (0fa28b1) to head (bd76f5e).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #14320   +/-   ##
=======================================
  Coverage   69.63%   69.63%           
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  Files         120      120           
  Lines        3418     3418           
  Branches     1178     1174    -4     
=======================================
  Hits         2380     2380           
  Misses       1013     1013           
  Partials       25       25