Move to TypeScript (#3830)

This moves our JS file to use TS instead, which allows us to use a proper linter to check the code.
All related files where moved out from the root in a dedicated folder to avoid polluting the Rust environment.

src/platform_impl/web/web_sys/schedule.rs

@@ -175,7 +175,7 @@ impl Schedule {
         F: 'static + FnMut(),
     {
         thread_local! {
-            static URL: ScriptUrl = ScriptUrl::new(include_str!("worker.min.js"));
+            static URL: ScriptUrl = ScriptUrl::new(include_str!("../script/worker.min.js"));
             static WORKER: Worker = URL.with(|url| Worker::new(&url.0)).expect("`new Worker()` is not expected to fail with a local script");
         }
 

src/platform_impl/web/web_sys/worker.js

@@ -1,10 +0,0 @@
-onmessage = event => {
-    const [port, timeout] = event.data
-    const f = () => port.postMessage(undefined)
-
-    if ('scheduler' in this) {
-        scheduler.postTask(f, { delay: timeout })
-    } else {
-        setTimeout(f, timeout)
-    }
-}

src/platform_impl/web/web_sys/worker.min.js

@@ -1 +0,0 @@
-onmessage=e=>{let[s,t]=e.data,a=()=>s.postMessage(void 0);"scheduler"in this?scheduler.postTask(a,{delay:t}):setTimeout(a,t)};