[Landing Page] Fix broken User Guide button

[imnasnainaec]

Fixes bug from (#2969) where the User Guide button on the landing page links to https://qa-kube.thecombine.app/docs/[object%20Object].

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This change is 

[jasonleenaylor]

Reviewed 1 of 1 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @imnasnainaec)

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 75.01%. Comparing base (8bee879) to head (196fb19).

Files	Patch %	Lines
src/components/LandingPage/LandingButtons.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3066      +/-   ##
==========================================
+ Coverage   74.93%   75.01%   +0.07%     
==========================================
  Files         269      269              
  Lines       10358    10359       +1     
  Branches     1225     1225              
==========================================
+ Hits         7762     7771       +9     
+ Misses       2237     2231       -6     
+ Partials      359      357       -2     

Flag	Coverage Δ
backend	84.13% <ø> (+0.18%)	⬆️
frontend	66.61% <0.00%> (-0.02%)	⬇️

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