test: fix flaky native send and transaction decoding test

[pnarayanaswamy]

Description

The test dapp page loads and the element is visible but not enabled yet and this causes sometimes for the test to click on the button too soon and to fail. Added a new wait condition in the waitForSelector method to wait until the element is enabled and then click on it.

Related issues

Fixes: #28485

Manual testing steps

1. Go to this page...

Screenshots/Recordings

Before

After

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• I’ve included tests if applicable
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Pre-merge reviewer checklist

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[github-actions]

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[metamaskbot]

Builds ready [c06530d]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

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

Page Load Metrics (1616 ± 45 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	1451	1775	1618	93	45
		domContentLoaded	1441	1714	1593	79	38
		load	1451	1771	1616	94	45
		domInteractive	22	73	41	16	8
		backgroundConnect	9	67	22	18	9
		firstReactRender	16	93	44	26	13
		getState	5	57	10	11	5
		initialActions	0	1	0	0	0
		loadScripts	1038	1298	1176	68	33
		setupStore	6	51	10	10	5
		uiStartup	1627	2357	1860	159	76

Bundle size diffs

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