Fix broken bulkEditTags and refactor logic of the component

[skwowet]

Changes proposed ✍️

What

🤖 Generated by Copilot at ce43748

The pull request refactors the frontend code for bulk updating tags of members. It replaces the old AppMemberListBulkUpdateTags component with a new AppTagPopover component that uses a form schema and a member store. It also moves the tag-popover component to the member module and updates its logic. It comments out a redundant popover component in the member-list-table component and adds a TODO comment.
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🤖 Generated by Copilot at ce43748

Sing, O Muse, of the cunning coder who changed the code of tags
And how he faced the bug that lurked in app-tag-popover
He commented out the faulty component, leaving a note for Joana
The wise-eyed daughter of Athena, who first had placed it there

Why

How

🤖 Generated by Copilot at ce43748

• Move and rename tag-popover component from tag module to member module (link)
• Replace app-member-list-bulk-update-tags component with app-tag-popover component in member-list-toolbar component (link, link)
• Remove app-member-list-bulk-update-tags component file (link)
• Comment out app-tag-popover component in member-list-table component and add TODO comment (link)
• Refactor tag-popover component to handle bulk update of tags for selected members (link, link, link, link, link, link)

Checklist ✅

• Label appropriately with Feature, Improvement, or Bug.
• Add screehshots to the PR description for relevant FE changes
• New backend functionality has been unit-tested.
• API documentation has been updated (if necessary) (see docs on API documentation).
• Quality standards are met.

[joanagmaia]

Also found 2 issues:

• we are using tag-popover in member-view-header. Could you also update here so that it matches your refactor of tag-popover?
• If a member already has associated tags when we open the modal they are not pre selected. Could you also take a look at this please?