Add tokenID for tokentx API action explicitly

[vbaranov]

#2912

Motivation

tokenID is missing in tokentx API endpoint

Changelog

Add tokenID in output for tokentx endpoint explicitly in case of ERC-721 token instead to write the value to value key

Checklist for your Pull Request (PR)

• I added an entry to CHANGELOG.md with this PR
• If I added new functionality, I added tests covering it.
• If I fixed a bug, I added a regression test to prevent the bug from silently reappearing again.
• I checked whether I should update the docs and did so by submitting a PR to https://github.com/blockscout/docs
• If I added/changed/removed ENV var, I submitted a PR to https://github.com/blockscout/docs to update the list of env vars at https://github.com/blockscout/docs/blob/master/for-developers/information-and-settings/env-variables.md and I updated the version to master in the Version column. Changes will be reflected in this table: https://docs.blockscout.com/for-developers/information-and-settings/env-variables.
• If I add new indices into DB, I checked, that they are not redundant with PGHero or other tools

[coveralls]

Pull Request Test Coverage Report for Build ef9ee19b-ccb7-41ef-9a5f-1a360995a384

• 2 of 3 (66.67%) changed or added relevant lines in 1 file are covered.
• 2 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+0.004%) to 75.103%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
apps/block_scout_web/lib/block_scout_web/views/api/rpc/address_view.ex	2	3	66.67%

Files with Coverage Reduction	New Missed Lines	%
apps/block_scout_web/lib/block_scout_web/controllers/chain/market_history_chart_controller.ex	1	78.57%
apps/block_scout_web/lib/block_scout_web/views/address_transaction_view.ex	1	75.0%

Totals
Change from base Build 64bd01df-77cb-4ec3-9f0d-cc2c8a6359d0:	0.004%
Covered Lines:	5297
Relevant Lines:	7053

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💛 - Coveralls