Add Preload Link Tags To Head

[shadowtime2000]

Because this project does not bundle the output of a build it is importing from links at runtime. We should probably add <link rel="preload" /> tags in the header for the static output so the browser knows to start fetching those files.

[ije]

that makes sense

[ije]

you can check #5 optimize section, this is in the plan

[shadowtime2000]

Continuing a conversation from Discord, the preloading of scripts/modules should be improved to preload the actual scripts which are used from the <script> tags. The rust compiler #28 could output a dependency graph which could be used for stuff like this. We will also need to change this for production when it will bundle the dependencies.

[ije]

preload scripts is done in production mode, no need in dev