feat(ui): quick filter by keyword in movie list

[Starosdev]

Feature Request

Upstream: Radarr#9362

Environment

• Component: Frontend

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Description

Add a quick-filter text input to the main movie list that filters movies by title as you type. Currently users must use the full search or create custom filters.

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Acceptance Criteria

• Text input in movie index that filters by title
• Filters as user types (debounced)
• Works with existing sort and filter options