Icons: extends icon data + improved search

[nielslyngsoe]

Extended icons data
Embeds data from Lucide and Thesaurus(earlier community package. Which have been approved to get merged into the core)

Search Logic:
This improves the search logic of the Icon Picker to handle that extra data.

Result
Enables this amount of results from a Search, where previously search would only provide exact matches with the icon alias.

[Copilot]

Pull request overview

This PR enriches the backoffice icon registry with thesaurus-style metadata (keywords, groups, related icons) and updates the Icon Picker’s search to take advantage of that extra data via tokenized substring matching plus fuzzy matching.

Changes:

• Added Levenshtein distance/similarity utilities (with tests) and exported them via the core string utils barrel.
• Extended UmbIconDefinition and the generated icon registry data to include keywords, groups, and related.
• Implemented a new searchIcons() function for ranked icon searching (incl. fuzzy matching + related icon expansion) and wired it into the icon picker with debounced @input handling.

Reviewed changes

Copilot reviewed 10 out of 12 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/Umbraco.Web.UI.Client/src/packages/core/utils/string/levenshtein/levenshtein.function.ts	Adds Levenshtein distance + normalized similarity utilities.
src/Umbraco.Web.UI.Client/src/packages/core/utils/string/levenshtein/levenshtein.function.test.ts	Unit tests for Levenshtein distance/similarity.
src/Umbraco.Web.UI.Client/src/packages/core/utils/string/levenshtein/index.ts	Barrel export for Levenshtein utilities.
src/Umbraco.Web.UI.Client/src/packages/core/utils/string/index.ts	Exposes Levenshtein utilities via string utils barrel.
src/Umbraco.Web.UI.Client/src/packages/core/icon-registry/types.ts	Extends icon definition type with keywords, groups, related.
src/Umbraco.Web.UI.Client/src/packages/core/icon-registry/icons.ts	Populates icon registry entries with keywords/groups/related metadata.
src/Umbraco.Web.UI.Client/src/packages/core/icon-registry/icon-picker-modal/icon-search.function.ts	Implements ranked search (substring + fuzzy) and related icon expansion.
src/Umbraco.Web.UI.Client/src/packages/core/icon-registry/icon-picker-modal/icon-search.function.test.ts	Unit tests for the new icon search behavior.
src/Umbraco.Web.UI.Client/src/packages/core/icon-registry/icon-picker-modal/icon-picker-modal.element.ts	Switches to debounced search using searchIcons() on @input.
src/Umbraco.Web.UI.Client/devops/icons/todo_implement_this_data_thesaurus.json	Removes now-obsolete thesaurus TODO JSON file.
src/Umbraco.Web.UI.Client/devops/icons/index.js	Updates icon generation to include keywords/groups/related in generated icons.ts.

[claude]

PR Review

Target: origin/main · Based on commit: c16799331058599b524eba4eb39f549cc8f36c85
Skipped: 1 noise file (todo_implement_this_data_thesaurus.json — deleted data placeholder) out of 12 total

Extends UmbIconDefinition with optional keywords, groups, and related metadata fields; backfills the icon dictionary with that data; adds a Levenshtein string-distance utility to core utils; and replaces the icon picker's simple name-substring filter with a tiered fuzzy search that also surfaces related icons.

• Modified public API: UmbIconDefinition (@umbraco-cms/backoffice/icon) — three optional fields added (keywords, groups, related). New exports added to @umbraco-cms/backoffice/utils: levenshteinDistance, levenshteinSimilarity.
• Other changes: Icon picker search now returns fuzzy-matched results ordered by relevance and appends related icons after primary matches; previously it was a simple name-substring filter. End users will see improved search results and more icon suggestions.

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Suggestions

• icon-search.function.ts:65: groupTokens variable name is misleading — these are full group strings, not individual word tokens. See inline comment.
• icon-search.function.ts:73: Group strings in the fuzzy-matching pass are not tokenized, so multi-word groups (e.g. "item media") don't benefit from typo-tolerant matching. Tier 1 substring checks cover the no-typo case, so this is low-impact. See inline comment for a one-liner fix.

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Approved with Suggestions for improvement

Good to go — solid implementation with good test coverage. The suggestions are genuinely minor; the search logic is correct and the breaking-change analysis is clean (all changes are additive). Please do a manual sanity check of the icon picker search UX before merging.