refactor: iframe plugin support

[edoardo]

Extend the dashboard item search to include the event visualizations.

Implement the new secure iframe plugin solution needed for LL and DV plugins and the other ones that will follow. These dashboard items are rendered as iframe tags pointing to the location of the plugin. Normally the URL used is the one specified in pluginLaunchUrl returned by the apps API. There is a backdoor which is enabled only in dev mode where it's possible to override those locations via localStorage for development/testing purposes (ie. pointing a plugin to a port on localhost where the plugin runs).

Here's an example of override for both DV and LL plugins:

[dhis2-bot]

🚀 Deployed on https://pr-2110--dhis2-dashboard.netlify.app

[cypress[bot]]

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Test summary

24 • 35 • 0 • 0

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Run details

Project	dashboards-app
Status	Failed
Commit	3d818636e0
Started	Dec 16, 2022 2:56 PM
Ended	Dec 16, 2022 3:07 PM
Duration	10:56 💡
OS	Linux Ubuntu - 22.04
Browser	Electron 87

View run in Cypress Dashboard ➡️

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Failures

	view_dashboard.feature		9
1	Viewing dashboards > I switch between dashboards
2	Viewing dashboards > I search for a dashboard
3	Viewing dashboards > I search for a dashboard with nonmatching search text
4	Viewing dashboards > I view the print layout preview
5	Viewing dashboards > I view the print one-item-per-page preview
6	Viewing dashboards > I view a dashboard with items lacking shape
7	Viewing dashboards > I expand the control bar
8	Viewing dashboards > Maps with tracked entities show layer names in legend
9	Viewing dashboards > User's preferred dashboard is opened
	view_errors.feature		1
1	Errors while in view mode > I navigate to a dashboard that doesn't exist or I don't have access to
This comment includes only the first 10 test failures. See all 35 failures in the Cypress Dashboard.

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[dhis2-bot]

:tada: This PR is included in version 99.10.11 :tada:

The release is available on GitHub release

Your semantic-release bot :package::rocket: