Provide the ability to only store gzipped HTML files

Is your feature request related to a problem? Please describe.

We are currently storing both the GZIPped and non-GZIPped versions of HTML files.
If the following are enabled:
• Separate cache for mobile devices,
• The WebP feature
• Dynamic cookies

the number of HTML files stored for every URL can increase rapidly, especially in very large sites, increasing the size of the /cache/wp-rocket/ folder.

Describe the solution you'd like

Nowadays, all browsers support GZIP:


It would make sense to at least allow disabling the creation of non-gzipped HTML files.

Keeping .html files would make sense as a fallback, e.g. in case of server incompatibility, where currently we suggest removing our gzip htaccess rules.

Additional context

Related tickets: