Misc: Move the runtime files under runtime/js (#1727)

The wasm_of_ocaml runtime will be under runtime/wasm.

Author: vouillon

biome.json

@@ -2,7 +2,7 @@
   "$schema": "https://biomejs.dev/schemas/1.9.1/schema.json",
   "files": {
     "include": ["runtime"],
-    "ignore": ["runtime/zstd.ts"]
+    "ignore": ["runtime/js/zstd.ts"]
   },
   "formatter": {
     "enabled": true,

compiler/lib-runtime-files/dune

@@ -7,7 +7,7 @@
  (target files.ml)
  (deps
   gen/gen.exe
-  (glob_files ../../runtime/*.js))
+  (glob_files ../../runtime/js/*.js))
  (action
   (with-stdout-to
    %{target}