[Editor] Clean unfinished UI features

[Angi-Kinas]

Description

This PR removes, uncomments and hides features that are not yet implemented.
The features that are removed:

• Multi-select Checkbox for the results table
• tabs above all records and my records dashboards

The features that are uncommented:

• elements in the navbar (discussion, calendar)
• “Not implemented yet” elements of the edit toolbar

Additionally the title help icon is hidden when help text is empty.

Screenshots

Quality Assurance Checklist

• Commit history is devoid of any merge commits and readable to facilitate reviews
• If new logic ⚙️ is introduced: unit tests were added
• If new user stories 🤏 are introduced: E2E tests were added
• If new UI components 🕹️ are introduced: corresponding stories in Storybook were created
• If breaking changes 🪚 are introduced: add the breaking change label
• If bugs 🐞 are fixed: add the backport <release branch> label
• The documentation website 📚 has received the love it deserves

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This work is sponsored by Organization ABC.

[github-actions]

Affected libs: feature-editor, ui-search, feature-search, feature-router, feature-map, feature-dataviz, feature-record,
Affected apps: metadata-editor, datafeeder, demo, datahub, webcomponents, search, map-viewer,

• 🚀 Build and deploy storybook and demo on GitHub Pages
• 📦 Build and push affected docker images

[github-actions]

📷 Screenshots are here!

[coveralls]

coverage: 83.17% (+2.5%) from 80.717%
when pulling 6ad6399 on ME-clean-unfinished-UI-features
into e8eb1e1 on main.

[cmoinier]

Thanks for this cleanup @Angi-Kinas 😃
I had just one deletion suggestion below, but if you decide to keep it you can go ahead and merge!

[cmoinier]

Do we need to keep this empty ng-template for structure purposes ? or for later?