Site wide fixes - code format, straight quotes, "onchain"

[alexandratran]

Description

Applies the following changes across the doc site:

• Update inline code-formatted text to use the same font as code blocks. Adjust styles for readability.
• Replace all instances of smart/curly quotes with straight quotes.
• Replace all instances of "on-chain"/"off-chain" with "onchain"/"offchain."

Preview

https://metamask-docs-ebjzz8osk-consensys-ddffed67.vercel.app/metamask-connect/multichain/reference/methods/

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 and CSS styling updates; main risk is minor visual regressions in inline code rendering across the site.

Overview
Standardizes docs wording site-wide by replacing smart quotes with straight quotes and normalizing on-chain/off-chain phrasing to onchain/offchain.

Updates global and component styles to make inline code use a shared set of CSS variables (--inline-code-*) for font, weight, padding, and baseline alignment, and ensures code blocks remain unaffected (touches markdown, admonitions, TOC, quickstart steps, and simplified API reference param styling).

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Project	Deployment	Actions	Updated (UTC)
metamask-docs	Ready	Preview, Comment	Apr 8, 2026 7:42pm

[bgravenorst]

lgtm