[WEBSITE] changed to use grids endpoint and refactored api methods

[OchiengPaul442]

Summary of Changes (What does this PR do?)

• Implemented usage of Grids API endpoint
• Refactored API methods and eliminated token usage

Purpose of this PR is to solve the issue of tokens leaking in the frontend of website.

Status of maturity (all need to be checked before merging):

• I've tested this locally
• I consider this code done
• This change is ready to hit production in its current state.

[codecov]

Codecov Report

Attention: 5 lines in your changes are missing coverage. Please review.

Comparison is base (57798ea) 37.58% compared to head (bd3fc67) 37.90%.
Report is 43 commits behind head on staging.

Files	Patch %	Lines
website/frontend/apis/index.js	54.54%	5 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           staging    #1825      +/-   ##
===========================================
+ Coverage    37.58%   37.90%   +0.31%     
===========================================
  Files           59       59              
  Lines          596      591       -5     
  Branches       115      116       +1     
===========================================
  Hits           224      224              
+ Misses         355      350       -5     
  Partials        17       17              

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