Move schema.json to www/static

www/config.html

@@ -1205,7 +1205,7 @@
 
         (async () => {
             try {
-                const r = await fetch('https://go2rtc.org/schema.json', {cache: 'no-cache'});
+                const r = await fetch('schema.json', {cache: 'no-cache'});
                 if (r.ok) setupYamlHints(await r.json());
             } catch (e) {
                 // ignore schema load errors

www/static.go

@@ -4,4 +4,5 @@ import "embed"
 
 //go:embed *.html
 //go:embed *.js
+//go:embed *.json
 var Static embed.FS