Adding Health in Dashboard

[AyushAmbastha]

Added the health folder in dashboard so that it's generic and can be used across components. Working remains the same.

[AyushAmbastha]

@rawagner Agreed, Will amend the PR. Thanks!

[coveralls]

Pull Request Test Coverage Report for Build 1462

• 26 of 26 (100.0%) changed or added relevant lines in 7 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.06%) to 87.272%

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Totals
Change from base Build 1223:	-0.06%
Covered Lines:	3356
Relevant Lines:	3682

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💛 - Coveralls

[AyushAmbastha]

@rawagner @suomiy , I've made the requested changes and amended the PR. Please review.

BEFORE-

AFTER-

The changes I've made are-

1. Made health card generic by adding Heath in the Dashboard folder. HealthItem now receives icon, message and classname. These values are passed after being mapped specific for Cluster or Storage Overview.
2. Made a change in the dashoard.scss file to remove the gap between the Health and the Compliance card.
3. Wrote fixtures and tests for compliance card by adding new file 'ComplianceBody.js' and removed complianceData from the index.js file.
4. Seperate 'strings.js' file for Cluster and Storage Overview which is used when Health card is rendered.

Reference Doc - https://docs.google.com/presentation/d/15nDG3VuQRy6vJbMX4yq6ZvJ5G2Qawaz9glnLT8GEvX4/edit#slide=id.g4fa43fba25_0_0

[rawagner]

Please do not change data format from the previous one, we are not using the same as in OCS

[rawagner]

I would split the PR to two - first one would contain new generic HealthBody/Item for Dashboard + Health in StorageOverview. I will create second one which changes ClusterOverview health to use HealthBody/Item from Dashboard - as this will probably require changes in web-ui too

[AyushAmbastha]

@rawagner Rolled back the changes for the cluster overview and made the requested changes.

Note: Build failing with error - Invalid component selector ".kubevirt-dashboard-health__body"
kubevirt-health-... is already used in Cluster Overview.