fix(points): add required request headers for trackPointsEvent call

[kathaypacific]

Description

The missing headers were causing these calls to always fail.

Test plan

No more errors for /trackPointsEvent

Related issues

n/a

Backwards compatibility

Y

Network scalability

If a new NetworkId and/or Network are added in the future, the changes in this PR will:

• Continue to work without code changes, OR trigger a compilation error (guaranteeing we find it when a new network is added)

[bakoushin]

✨

[codecov]

Codecov Report

Attention: Patch coverage is 93.62101% with 34 lines in your changes are missing coverage. Please review.

Project coverage is 86.19%. Comparing base (6ce52a6) to head (a92e095).
Report is 28 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5378      +/-   ##
==========================================
+ Coverage   86.09%   86.19%   +0.10%     
==========================================
  Files         737      748      +11     
  Lines       30016    30474     +458     
  Branches     5143     5196      +53     
==========================================
+ Hits        25842    26268     +426     
- Misses       3947     3978      +31     
- Partials      227      228       +1     

Files	Coverage Δ
src/abis/AavePoolV3.ts	100.00% <100.00%> (ø)
src/analytics/Events.tsx	100.00% <100.00%> (ø)
src/analytics/Properties.tsx	100.00% <ø> (ø)
src/components/NumberTicker.tsx	97.14% <100.00%> (+0.17%)	⬆️
src/dappsExplorer/TabDiscover.tsx	95.83% <100.00%> (-0.07%)	⬇️
src/earn/EarnCta.tsx	100.00% <100.00%> (ø)
src/earn/selectors.ts	100.00% <100.00%> (ø)
src/earn/slice.ts	100.00% <100.00%> (ø)
.../fiatExchanges/FiatExchangeCurrencyBottomSheet.tsx	88.37% <100.00%> (ø)
src/jumpstart/JumpstartEnterAmount.tsx	93.02% <100.00%> (ø)
... and 30 more

... and 1 file with indirect coverage changes

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