refactor: make dataset filters use the shared filters and cleanup all the individual components

[martin-trajanovski]

Description

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Motivation

Background on use case, changes needed

Fixes:

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Changes:

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Tests included

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Documentation

• swagger documentation updated [required]
• official documentation updated [nice-to-have]

official documentation info

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Backend version

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Summary by Sourcery

Refactor dataset and proposal filtering to a shared, configurable filter architecture and modernize the proposal dashboard into composable components

New Features:

• Introduce SharedFilterComponent and SharedFilterModule to replace individual filter components
• Add FullTextSearchBarComponent and FullTextSearchBarModule for unified text searching
• Create ProposalTableComponent, ProposalSideFilterComponent, and ProposalSearchBarComponent for the proposal dashboard

Enhancements:

• Unify dataset filter actions and selectors into generic multiselect, dateRange, and text filters
• Replace fetchCountAction with fetchFacetCountsAction and update effects/reducers to handle facet counts
• Refactor proposal-dashboard.component and datasets-filter.component to use shared filter modules and stream queryParams

Tests:

• Update unit tests and selectors to match new filter types and facet counts
• Adjust Cypress tests to trigger searches via search-button instead of direct input