Ensure that portfolio tooltip does not show if new custom network popup is shown

[danjm]

Fixes #16065

[github-actions]

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[georgewrmarshall]

LGTM! Do we have any other modals that might overlap like the added new network modals?

I guess this is the right behaviour as well because tooltips render outside of the root html element that loads the app

[metamaskbot]

Builds ready [4b06221]

• 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
• mv2: E2e Actions Stats
• code coverage: Report
• 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
  • 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 (2184 ± 57 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	86	185	107	22	10
		domContentLoaded	1874	2357	2173	117	56
		load	1874	2357	2184	120	57
		domInteractive	1874	2357	2173	117	56