Added aria-label for input field in /subscriptions route (#8000)

[esiebomaj]

This is the PR for the adjustments I made with respect to issue #8000

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[codecov]

Codecov Report

Merging #8008 into master will decrease coverage by 0.12%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #8008      +/-   ##
==========================================
- Coverage   82.17%   82.04%   -0.13%     
==========================================
  Files          97       97              
  Lines        5643     5643              
==========================================
- Hits         4637     4630       -7     
- Misses       1006     1013       +7     

Impacted Files	Coverage Δ
app/services/execute_search.rb	88.88% <0.00%> (-5.56%)	⬇️
app/api/srch/search.rb	66.24% <0.00%> (-3.83%)	⬇️

[esiebomaj]

This will be my first open source contribution (so excited)
My twitter handle is @esiebomaj

[ebarry]

Thank you @esiebomaj , and congrats on making your first open source contribution—so happy it is with Public Lab. 🌏🌍🌎
Someone will review this ASAP.

[cesswairimu]

Thanks for working on this 🎉

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[cesswairimu]

Welcome to PublicLab @esiebomaj 🎈