Multiselect base filter

[gaspergrom]

Changes proposed ✍️

What

🤖 Generated by Copilot at 4dda61f

This pull request adds support for multiselect async filters in the frontend. It introduces new components, types, and functions to handle the rendering, fetching, and querying of these filters. It also enhances the existing multiselect filters by adding a dynamic switch between checkbox and tag subcomponents based on the number of options. Additionally, it fixes some minor issues in the formatting, styling, and null checking of the filters component. The files affected are mainly in the frontend/src/shared/modules/filters folder and the frontend/src/modules/activity/config/filters/member/config.ts file.
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🤖 Generated by Copilot at 4dda61f

Filters component
Enhanced with multiselect
Autumn leaves falling

Why

How

🤖 Generated by Copilot at 4dda61f

• Add and modify components, config files, and functions to enable multiselect async filter type and improve multiselect filter type (link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link)
• Import the tooltip.scss file and add the data-tooltip attribute to enable the tooltip style for the filter item labels (link, link)
• Add the data parameter and the v-model:data directive to the FilterItem.vue component to enable two-way binding and passing data to the label renderer (link, link, link)
• Remove an extra line break in the FilterItem.vue component for code formatting (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]

Just missing the Lint fix, failing on the pipeline