React 18 (#863)

* gymnastics to make theme script work with react 18 hydration

* try next 12.1.3 canary to fix SSG head tags?

* revert theme script changes

* next 12.1.3-canary.3

* double-revert some of the use-theme.tsx changes

* separate theme restoration script & move to _document

* bump next

* bump next (again)

* clean up some theme stuff

* use hashed image URLs in webmanifest and feeds

* text experimental react config

* Update ThemeScript.tsx

* switch selfie image to `layout="raw"`

* use `layout="raw"` for all non-imported images

* revert raw images in some places, messes up responsiveness

* fix nitpicky "no divs inside buttons" html validation error

* fix react-player hydration errors

* fix hydration errors from server/client time zone differences

* clean up hydration fixes

* Update format-date.ts

* last-minute cleanup

lib/config/index.js

@@ -3,7 +3,8 @@ module.exports = {
   // Site info
   siteName: "Jake Jarvis",
   siteDomain: "jarv.is",
-  siteLocale: "en_us",
+  siteLocale: "en-US",
+  timeZone: "America/New_York", // https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List
   baseUrl:
     process.env.NEXT_PUBLIC_VERCEL_ENV === "production"
       ? "https://jarv.is"