Fix Preferences plugin not implemented error on Android

[deep-foundation-sweepai]

Description

This PR addresses the issue of the "Preferences" plugin not being implemented on Android in the deep-memo-app project. The error occurs when running the Android app and is caused by missing or incorrect configuration of the Preferences plugin. This PR includes the necessary changes to properly configure and use the Preferences plugin on Android.

Summary of Changes

• Modified the package.json file to ensure that the "@capacitor/preferences" plugin is listed as a dependency.
• Modified the android/capacitor.settings.gradle file to include the Preferences plugin in the project.
• Modified the components/page.tsx file to import and use the Preferences plugin correctly.
• Modified the android/app/src/main/java/com/deepfoundation/deep/MainActivity.java file to initialize the Preferences plugin for Android.

These changes ensure that the Preferences plugin is properly installed, configured, and used in the deep-memo-app project, resolving the "Preferences plugin is not implemented on android" error.

Fixes #127.

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[deep-foundation-sweepai]

GitHub actions yielded the following error.

The command that failed is npm run build. Here are the relevant lines from the logs:

- warn Invalid next.config.js options detected:
- warn     The root value has an unexpected property, strictMode, which is not in the list of allowed properties (amp, analyticsId, assetPrefix, basePath, cleanDistDir, compiler, compress, configOrigin, crossOrigin, devIndicators, distDir, env, eslint, excludeDefaultMomentLocales, experimental, exportPathMap, generateBuildId, generateEtags, headers, httpAgentOptions, i18n, images, modularizeImports, onDemandEntries, optimizeFonts, output, outputFileTracing, pageExtensions, poweredByHeader, productionBrowserSourceMaps, publicRuntimeConfig, reactStrictMode, redirects, rewrites, sassOptions, serverRuntimeConfig, skipMiddlewareUrlNormalize, skipTrailingSlashRedirect, staticPageGenerationTimeout, swcMinify, target, trailingSlash, transpilePackages, typescript, useFileSystemPublicRoutes, webpack).
- warn See more info here: https://nextjs.org/docs/messages/invalid-next-config
- warn No build cache found. Please configure build caching for faster rebuilds. Read more: https://nextjs.org/docs/messages/no-cache

...

> Build optimization failed: found page without a React Component as default export in
pages/test

See https://nextjs.org/docs/messages/page-without-valid-component for more info.

##[error]Process completed with exit code 1.

This is likely a linting or type-checking issue with the source code. Update the code changed by the PR. Don't modify the existing tests.

I'm getting the same errors 3 times in a row, so I will stop working on fixing this PR.