Update listeners.html

[Bhaybhiisparks]

@Ibom99 @TildaDares
I updated var to const in line 26 of the listeners.html file

Fixes #1135 (<=== Add issue number here)

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[TildaDares]

Amazing work @Bhaybhiisparks. Thank you!!

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[TildaDares]

Congratulations on merging your PR @Bhaybhiisparks 🎉🎉

[7malikk]

Congratulations @Bhaybhiisparks 🎉

[Ibom99]

@Bhaybhiisparks Great Work! Congratulations!!

[Bhaybhiisparks]

Thank you everyone 😊

[Bhaybhiisparks]

Can I request another FTO issue??

[TildaDares]

Hi @Bhaybhiisparks, contributors can only work on one FTO but you can look for other issues to work on without the first-timers-only label.