Improve usage sections labels in embedded-wallets sidebar panel

[swastik7805]

Description

This PR replaces raw code-style sidebar labels (camelCase API identifiers) with descriptive, human-readable labels across the usage/ sections for all Embedded Wallets SDK platforms.

Previously, the sidebar displayed technical method names which were ambiguous for readers scanning the documentation. The following mappings were applied consistently across iOS, Android, React Native, Flutter, JS, Unity, and Unreal SDKs:

Current (Technical)	Suggested (Human-readable)
connectTo / login	Sign in a user
request	Send requests
enableMFA	Enable MFA
manageMFA	Manage MFA
getUserInfo	Get user info
getPrivKey	Get private key
getEd25519PrivKey	Get Ed25519 private key
showWalletUI / launchWalletServices	Show wallet UI
logout	Sign out

Issue(s) fixed

Fixes #2862 proposed by @bgravenorst

Preview

The changes affect the sidebar navigation in the Embedded Wallets "Usage" sections for all supported platforms.

Before:

After:

Checklist

• If this PR updates or adds documentation content that changes or adds technical meaning, it has received an approval from an engineer or DevRel from the relevant team.
• If this PR updates or adds documentation content, it has received an approval from a technical writer.

External contributor checklist

• I've read the contribution guidelines.
• I've created a new issue (or assigned myself to an existing issue) describing what this PR addresses.

---

Note

Low Risk
Low risk documentation-only change that updates sidebar_label frontmatter across many usage pages; main risk is broken sidebar/nav if any label is relied on for ordering or cross-links.

Overview
Updates Embedded Wallets SDK usage/ docs across Android, iOS, Flutter, JS, React Native, Unity, and Unreal to replace camelCase API method names in sidebar_label with human-readable navigation labels (for example, “Sign in a user”, “Send requests”, “Show wallet UI”, “Sign out”).

No API behavior or examples are changed; this is strictly a docs sidebar/navigation readability improvement.

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Project	Deployment	Actions	Updated (UTC)
metamask-docs	Ready	Preview, Comment	Apr 20, 2026 4:33pm

[swastik7805]

@bgravenorst @alexandratran @AyushBherwani1998 @yashovardhan hey guys, i have fixed issue #2862 by improving sidebar panels labels in embedded-wallets (embedded-wallets/sdk/{name}/usage).
Resolved conflicts as well.

PR is updated and ready for review.