fix: Ignore empty data field on hex data alert

[pedronfigueiredo]

Description

When the hex data field is enabled in the send flow, the data field is sent as 0x. In those cases we don't need to show the alert to the user.

Related issues

Fixes:

Manual testing steps

1. Go to this page...

Screenshots/Recordings

Before

After

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[github-actions]

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[metamaskbot]

Builds ready [3b462fe]

• builds: chrome, firefox
• builds (flask): chrome, firefox
• builds (MMI): chrome
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
  • content-script: 0
  • offscreen: 0

Page Load Metrics (1942 ± 74 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	1559	2178	1950	150	72
		domContentLoaded	1514	2112	1906	143	69
		load	1522	2192	1942	154	74
		domInteractive	26	69	36	9	5
		backgroundConnect	10	91	37	26	12
		firstReactRender	16	98	37	25	12
		getState	9	68	25	21	10
		initialActions	0	1	0	0	0
		loadScripts	1095	1607	1405	116	55
		setupStore	8	80	19	20	9
		uiStartup	1809	2801	2269	200	96

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: 69 Bytes (0.00%)
• common: 0 Bytes (0.00%)