Update node version and NPM packages

[Souptik2001]

Issue - #71

This PR -

• Updates the node version.
• Updates all the NPM packages.
• Updates the codebase to fix errors generated by the newer versions of the packages.
• Removes the PWA integration as the package used currently (next-offline) has not been updated since last 2 years. We will be integrating it later with maybe next-pwa package. Reference issue.

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Name	Status	Preview	Comments	Updated
wp-decoupled	❌ Failed (Inspect)			Feb 18, 2023 at 11:40AM (UTC)

[thelovekesh]

@Souptik2001 @imranhsayed Just FYI, I am putting this through in #80.