Replace astro-i18next and HeadHrefLangs Component Due to Compatibility Issues

Bumping up the @astrojs/starlight dependency caused compatibility issues with the HeadHrefLangs component that is part of the astro-i18next module. Unfortunately, it seems this module is no longer being maintained. HeadHrefLangs is a component from astro-i18next that generated tags with hreflang attributes for SEO, specifying alternate language versions of a webpage.

astro-i18next also adds in other internationalization features like i18next configurations. There needs be investigation of the best way to keep all this functionality while keeping everything updated. This either means exploring other community libraries, or use Astro's Built-in i18n Support. This also has limitations which is why it needs more work to figure out the best path.

Error

TypeError
An error occurred.
Cannot read properties of undefined (reading 'map')
components/HeadHrefLangs.astro:10:19
Open in editor
---
import i18next from "i18next";
import { localizeUrl } from "../..";

const supportedLanguages = i18next.languages;
const currentUrl = Astro.url.href;
---

{
  supportedLanguages.map((supportedLanguage) => (
^
    <link
      rel="alternate"
      hreflang={supportedLanguage}
      href={localizeUrl(currentUrl, supportedLanguage)}
    />
  ))
}
Stack Trace
TypeError: Cannot read properties of undefined (reading 'map')
    at /home/sarah/sarah-webmo/webmonetization/node_modules/astro-i18next/src/components/HeadHrefLangs.astro:10:19
    at AstroComponentInstance.HeadHrefLangs [as factory] (/home/sarah/sarah-webmo/webmonetization/node_modules/astro/dist/runtime/server/astro-component.js:16:12)
    at AstroComponentInstance.init (/home/sarah/sarah-webmo/webmonetization/node_modules/astro/dist/runtime/server/render/astro/instance.js:32:29)
    at AstroComponentInstance.render (/home/sarah/sarah-webmo/webmonetization/node_modules/astro/dist/runtime/server/render/astro/instance.js:42:36)
    at Object.render (/home/sarah/sarah-webmo/webmonetization/node_modules/astro/dist/runtime/server/render/component.js:367:22)
    at Module.renderChild (/home/sarah/sarah-webmo/webmonetization/node_modules/astro/dist/runtime/server/render/any.js:31:17)

Current Workaround

The dependencies can be updated by removing the import { HeadHrefLangs } from "astro-i18next/components"; and <HeadHrefLangs /> lines from src/layouts/Base.astro. See chore: basic dependency bump #485

Start with src/layouts/Base.astro and the astro-i18next HeadHrefLangs usage, then review the reported compatibility error and Astro's built-in i18n support. Compare that option with the linked community libraries while preserving the existing i18next functionality. Done means a maintained approach replaces the workaround and generates the required localized alternate-language links without the reported error.