Fix error that occurs when attempting to display transaction value for a transaction with no value argument in the transaction data (in this case approve())

[adonesky1]

Fixes: Issue reported by multiple users to support over the weekend

The issue: When users approve an asset and then go to the home screen for that asset (or the activity tab on the home screen without clicking into the asset) they get BigNumber error:
https://user-images.githubusercontent.com/34557516/182171511-8f252132-b826-42a5-a982-dc3a1e8ef5ca.mp4

This issue appears to have been introduced here, since after this change a truthy value was passed to useTokenDisplay here, and so shouldCalculateTokenValue gets set to true here, and then we attempt to calculate the tokenAmount even though the transaction data does not contain a _value arg.

The Fix:
modify the shouldCalculateTokenValue conditional to only move on to calculating the amount if we are able to extract the _value arg required to successful/safely calculate the amount.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[metamaskbot]

Builds ready [0d9b0e0]

• builds: chrome, firefox, opera
• builds (beta): chrome, firefox, opera
• builds (flask): chrome, firefox, opera
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• code coverage: Report
• storybook: Storybook
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7
  • common: 0, 1, 2, 3, 4, 5, 6, 7
  • content-script: 0
  • contentscript: contentscript
  • disable-console: disable-console
  • inpage: inpage
  • policy-load: policy-load
  • sentry-install: sentry-install
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1719 ± 41 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	84	143	108	16	8
		domContentLoaded	1565	1851	1700	69	33
		load	1570	1950	1719	85	41
		domInteractive	1565	1851	1700	69	33

highlights:

storybook

• ui/components/app/transaction-list-item/transaction-list-item.stories.js
• ui/components/app/transaction-list/transaction-list.stories.js