Add Exclusion Filters (NOT operator) across discovery and search filters (iOS)

Summary:

Allow users to exclude specific genres, streaming services, certifications, or tags by introducing negative/exclusion filtering (a "NOT" condition) alongside the current inclusion filters ("IS" condition).

The Problem:

Currently, filtering in the iOS app only functions as an inclusive selection. If a user wants to browse across a wide variety of content while omitting one or two specific elements (for example, hiding the Horror genre, omitting a streaming service they don't subscribe to, or excluding unrated content), they must manually select every other available option. This makes broad discovery cumbersome and time-consuming.

Proposed Solution:

Introduce a toggle or multi-state selector within the filter submenus (e.g. Genre, Availability, Certification):

• First tap: Include (Default green/purple highlight, "IS")

• Second tap: Exclude (Red highlight with a minus or strikethrough icon, "NOT")

• Third tap: Reset/Off

Alternatively, provide a clear "Include / Exclude" segmented control at the top of filter sub-sheets to define whether selected tags are shown or hidden.

Key Use Cases:

• Browsing all movies or TV shows while strictly excluding Horror.

• Filtering out specific streaming availability options that aren't relevant.

• Hiding specific certifications (e.g. excluding NC-17 or R-rated titles for family viewing) without having to manually pick every other rating.

Value:

Greatly improves discovery flexibility and matches advanced filtering conventions used across media aggregators, making it easier for users to curate their feeds quickly.