REST API: fix check for record.AppParams in AccountApplicationInformation

[cce]

Summary

Follow-on to #3702, the copy-pasted code in AccountApplicationInformation was checking the wrong value before returning AppParams.

[tsachiherman]

any chance you could provide a unit test for this one ? maybe extend an existing unit test to cover this one as well ?

[cce]

Yes, sure ... my unit tests created multiple apps AND assets for accounts, but not just assets or just apps, which is why it wasn't caught by the existing tests.

[codecov-commenter]

Codecov Report

Merging #3707 (4797e2e) into master (e1ae888) will decrease coverage by 0.00%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #3707      +/-   ##
==========================================
- Coverage   49.58%   49.58%   -0.01%     
==========================================
  Files         390      390              
  Lines       68551    68551              
==========================================
- Hits        33992    33990       -2     
+ Misses      30826    30825       -1     
- Partials     3733     3736       +3     

Impacted Files	Coverage Δ
daemon/algod/api/server/v2/handlers.go	0.00% <0.00%> (ø)
network/wsPeer.go	68.05% <0.00%> (-2.78%)	⬇️
catchup/peerSelector.go	98.95% <0.00%> (-1.05%)	⬇️
data/abi/abi_type.go	87.67% <0.00%> (-0.95%)	⬇️
data/transactions/verify/txn.go	45.02% <0.00%> (ø)
network/wsNetwork.go	62.99% <0.00%> (+0.19%)	⬆️
catchup/service.go	69.38% <0.00%> (+0.74%)	⬆️
cmd/tealdbg/debugger.go	72.41% <0.00%> (+0.98%)	⬆️
cmd/algoh/blockWatcher.go	80.95% <0.00%> (+3.17%)	⬆️
ledger/roundlru.go	96.22% <0.00%> (+5.66%)	⬆️

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