docs: update installation and root level readme (#164)

[KiruthikaJeyashankar]

Summary by CodeRabbit

• Documentation
  • Added an “Available Libraries” section to the main README with links to the Kotlin, JavaScript, and Swift library resources.
  • Updated Kotlin usage instructions to reflect the current published package names and version information for Android/AAR and JVM/JAR builds.

[coderabbitai]

Walkthrough

This PR updates documentation only. README.md gains an "Available Libraries" section linking to Kotlin, JavaScript, and Swift libraries. kotlin/Readme.md is updated to describe two separate Maven artifacts (pixelpass-aar, pixelpass-jar) with a new version 1.0.0-alpha.1, replacing the previous single artifact instructions.

Changes

Documentation updates

Layer / File(s)	Summary
Available Libraries section README.md	Adds a new section listing available Kotlin, JavaScript, and Swift libraries with links.
Kotlin artifact usage docs kotlin/Readme.md	Updates usage instructions to describe two separate artifacts (pixelpass-aar, pixelpass-jar) with updated Gradle/Maven snippets and version bump to 1.0.0-alpha.1.

Estimated code review effort: 1 (Trivial) | ~3 minutes

Poem

Two readmes hopped into the light,
New artifacts, versions just right,
AAR and JAR, side by side,
Links to libraries, README's pride,
A rabbit thumps twice—docs done tight! 🐇📄

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the docs-focused changes to installation guidance and the root README.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@kotlin/Readme.md`:
- Around line 12-53: The README install coordinates are using a newer release
version than the Kotlin publishing default, so the documented artifacts may not
resolve. Update the version reference in kotlin/Readme.md to match the version
emitted by the publishing flow, and verify it stays consistent with the default
in PixelPass/publish-artifact.gradle (or ensure that script always overrides it
during release). Keep the artifact names pixelpass-aar and pixelpass-jar
unchanged while aligning the shared version string.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 1d9460c3-ce75-4726-a481-1000d46f71b5

📥 Commits

Reviewing files that changed from the base of the PR and between 36ab226 and eeb6bcb.

📒 Files selected for processing (2)

• README.md
• kotlin/Readme.md