[Glitch] Fix tesseract.js being part of the common chunk

Port dfe6059889 to glitch-soc

Signed-off-by: Thibaut Girka <thib@sitedethib.com>

app/javascript/flavours/glitch/util/async-components.js

@@ -153,3 +153,7 @@ export function ListAdder () {
 export function Search () {
   return import(/*webpackChunkName: "features/glitch/async/search" */'flavours/glitch/features/search');
 }
+
+export function Tesseract () {
+  return import(/*webpackChunkName: "tesseract" */'tesseract.js');
+}