feat: deprecate filter-solid, map new icon using filter

[scurker]

closes #2057

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[Copilot]

Pull Request Overview

This PR implements a deprecation strategy for the filter-solid icon by mapping it to the existing filter icon. The changes introduce a temporary mapping mechanism to consolidate similar icons before addressing the broader iconography system.

• Adds a MAPPED_TYPES mapping object to redirect filter-solid to filter
• Updates the build script to include non-SVG icon types in the TypeScript definitions
• Maintains backward compatibility while preparing for icon consolidation

Reviewed Changes

Copilot reviewed 2 out of 4 changed files in this pull request and generated 1 comment.

File	Description
packages/react/src/components/Icon/index.tsx	Implements icon mapping logic to redirect filter-solid to filter icon
packages/react/scripts/buildIconTypes.js	Updates type generation to include additional mapped icon types

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