Fix pre-selected remote filters

[joanagmaia]

Changes proposed ✍️

What

🤖[deprecated] Generated by Copilot at 9cc52e3

Updated the organizations filter in the activity, member, and organization modules to use id as the value field and to sort the options alphabetically by name. This improves the filter's consistency and usability across the frontend.
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🤖[deprecated] Generated by Copilot at 9cc52e3

Sing, O Muse, of the skillful coder who refined the filters
Of organizations, those noble groups of heroes and of leaders,
Who made them use the id field, not the name, as the key
And sorted them by alphabet, for clarity and ease.

Why

How

🤖[deprecated] Generated by Copilot at 9cc52e3

• Changed the remotePopulateItems function for the organizations filter in the activity, member, and organization modules to use the query method instead of the listAutocomplete method of the OrganizationService (link, link, link). This allows sorting the results by the display name of the organizations.

Checklist ✅

• Label appropriately with Feature, Improvement, or Bug.
• Add screenshots 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.