Show warnings on Add Recipient page of Send flow

[Gudahtt]

Warnings were not shown on the Add Recipient page of the send flow. Now any send warnings will be shown. This can be tested using an ENS name with a confusable character in it (the confusable character warning will be shown).

A condition was also removed that prevented any warnings or errors from rendering when the user had non-zero contacts or recent addresses. I have no idea why you'd want to hide warnings or errors if the user had no contacts or recent addresses. None of these errors even pertain to contacts or recent addresses.

Manual testing steps:

• Click 'Send'
• Paste an ENS address with at least one confusable character (e.g. faceboоk.eth)
• See that the warning is shown on the Add Recipient page

Screenshot

[metamaskbot]

Builds ready [fdd1400]

• builds: chrome, firefox, opera
• bundle viz: background, ui, inpage, contentscript, ui-libs, bg-libs, phishing-detect
• build viz: Build System
• code coverage: Report
• storybook: Storybook
• all artifacts

Page Load Metrics (581 ± 29 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	44	73	58	9	4
		domContentLoaded	356	702	580	60	29
		load	358	704	581	60	29
		domInteractive	356	702	579	60	29