fix: Enable NFT Airdrop to distribute multiple serials

[stoyanov-st]

Description:

This PR fixes the limit of one NFT serial Airdropped with a single transaction.
WIth this logic we can now distribute a NFT to multiple receivers.
The configured limits for airdrops are still applied here.

Related issue(s):

Fixes #17409

Notes for reviewer:

Checklist

• Documented (Code comments, README, etc.)
• Tested (unit, integration, etc.)

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.23% (target: -1.00%)	✅ 100.00%

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (79f9327)	96710	70241	72.63%
Head commit (f3c676c)	97698 (+988)	71185 (+944)	72.86% (+0.23%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#17413)	16	16	100.00%

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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[david-bakin-sl]

I think I'd like to see a test with multiple airdrops where one or more (but not all, and not the first in the list) fail.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.99%. Comparing base (79f9327) to head (f3c676c).
Report is 47 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #17413      +/-   ##
============================================
+ Coverage     68.69%   68.99%   +0.29%     
- Complexity    22520    22771     +251     
============================================
  Files          2605     2619      +14     
  Lines         96927    98272    +1345     
  Branches      10101    10184      +83     
============================================
+ Hits          66586    67800    +1214     
- Misses        26535    26644     +109     
- Partials       3806     3828      +22     

Files with missing lines	Coverage Δ
...temcontracts/hts/airdrops/TokenAirdropDecoder.java	100.00% <100.00%> (ø)

... and 146 files with indirect coverage changes

[lukelee-sl]

LGTM. Just a comment on an additional test if possible.

[lukelee-sl]

LGTM. tyvm.