[FEATURE]: Converts the package to typescript.

[pravton]

Task: https://wethecollective.teamwork.com/app/tasks/25795363

Description.

Converts the package to TypeScript.

Additional notes

• Andrew suggested trying the beta version, so pre.json is included with the changeset.
• Updated the configs and packages.
• Functionality is unchanged, and nothing should be breaking with this update.
• Updated all components and the classnames util with types.
• Updated the documentation with both JS and TS examples.

[Copilot]

Pull request overview

Converts the @wethegit/react-gallery package source and build pipeline to TypeScript, adding type exports and updating docs/examples to support TS consumers while keeping runtime behavior largely the same.

Changes:

• Migrates library entry points, components, hooks, and utilities from JS/JSX to TS/TSX and adds shared type definitions.
• Updates Vite build to use a TS entry and generate .d.ts output; adds a strict tsconfig.json.
• Updates package metadata and README to publish/describe the new TypeScript typings and usage examples.

Reviewed changes

Copilot reviewed 21 out of 24 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
vite.config.ts	Adds vite-plugin-dts and switches lib entry to src/lib/index.ts.
tsconfig.json	Introduces strict TS compiler settings for the repo.
src/main.tsx	Updates example app to TS and adjusts React root initialization.
src/lib/utils/classnames.ts	Replaces JS utility with typed TS implementation.
src/lib/utils/classnames.js	Removes old JS classnames implementation.
src/lib/types/types.ts	Adds shared exported type definitions for components/hooks.
src/lib/types/css-modules.d.ts	Adds TS module declarations for CSS modules.
src/lib/index.ts	Adds typed public exports (components + types).
src/lib/index.js	Removes old JS index exports.
src/lib/hooks/use-gallery.tsx	Adds generic return typing for the useGallery hook.
src/lib/components/gallery-pagination.tsx	Migrates pagination component to TS with typed render props.
src/lib/components/gallery-pagination.jsx	Removes old JSX pagination component.
src/lib/components/gallery-pagination-item.tsx	Migrates pagination item to TS and adds click arg typing.
src/lib/components/gallery-pagination-item.jsx	Removes old JSX pagination item.
src/lib/components/gallery-nav.tsx	Migrates nav component to TS with typed render prop and props.
src/lib/components/gallery-main.tsx	Migrates main component to TS with generics and typed pointer events/styles.
src/lib/components/gallery-item.tsx	Migrates item component to TS with typed props and style casting.
src/lib/components/gallery-context.tsx	Migrates context/provider to TS with typed context value + props.
README.md	Adds JS + TS usage examples and updates type references in docs.
package.json	Adds types export and introduces TS-related dev tooling/scripts.
package-lock.json	Updates lockfile for new TS/dts/eslint dependencies and versioning.
.eslintrc	Adds TypeScript ESLint configuration.
.changeset/six-nails-tease.md	Adds changeset for the TypeScript conversion + docs updates.
.changeset/pre.json	Enables Changesets pre-release mode for a beta tag.

Suppressed comments (6)

src/main.tsx:2

• Root is only used as a type; import it as type-only to avoid relying on tooling to erase it (and to prevent potential runtime named-import issues).
  src/main.tsx:105
• Typo in comment: "re-intializing" → "re-initializing".
  src/lib/components/gallery-context.tsx:98
• goToIndex currently treats falsy items (e.g., 0, "", false) as if the index is invalid because it checks !items[index]. Since items is generic (T[]), this should validate index bounds instead of item truthiness.

This issue also appears on line 114 of the same file.
src/lib/components/gallery-context.tsx:116

• This effect has the same falsy-item issue as goToIndex (!items[activeIndex]). If T can be falsy, this may incorrectly reset the gallery. Prefer an index bounds check.
  README.md:67
• Spelling/capitalization: "Javascript" should be "JavaScript".

#### Usage: Javascript

README.md:125

• Spelling/capitalization: "Typescript" should be "TypeScript".

#### Usage: Typescript

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