preconnect to storage bucket

[SamuelmdLow]

Adding this link element in the head of base.html might make the page load ever so slightly quicker

https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel/preconnect

[Nishim12]

We can also use dns-prefetch for loading some other 3rd party websites instead of pre-connect in some places in base.html file as using too many pre-connects can be counter-productive.
https://developer.mozilla.org/en-US/docs/Web/Performance/dns-prefetch

[Nishim12]

By testing preconnecting and dns-prefetching different 3rd party API such as JQuery, Google ads, Font Awesome, Google APIs, twitter, bootstrap I realized that its faster if we dont pre-connect or prefetch. Tested using Google Lighthouse, Google network and Django build in functionality that gives us load time. I tried many different combinations such as not using many pre-connects as that slows the speed of load time. Also tried using dns-pretching as fallback option. So I am keeping the website as it is right now as on average that gave the best result.