Migrate bs-platform to rescript 9.1.0

Author: jihchi

package.json

@@ -31,9 +31,9 @@
   },
   "scripts": {
     "build": "snowpack build",
-    "build:res": "bsb -make-world",
+    "build:res": "rescript build -with-deps",
     "clean": "npm run clean:res",
-    "clean:res": "bsb -clean-world",
+    "clean:res": "rescript clean",
     "start": "snowpack dev",
     "test": "web-test-runner \"src/**/__tests__/*.bs.js\""
   },
@@ -49,8 +49,8 @@
     "@snowpack/web-test-runner-plugin": "^0.2.2",
     "@testing-library/react": "^11.2.6",
     "@web/test-runner": "^0.12.19",
-    "bs-platform": "^9.0.2",
     "chai": "^4.3.4",
+    "rescript": "^9.1.0",
     "snowpack": "^3.2.2"
   }
 }

src/App.res

@@ -22,7 +22,7 @@ let make = () => {
       </p>
       <p>
         {React.string("Page has been open for ")}
-        <code> {React.string(Printf.sprintf("%.1f", count /. 10.))} </code>
+        <code> {React.string(Js.Float.toFixedWithPrecision(count /. 10., ~digits=1))} </code>
         {React.string(" seconds")}
       </p>
       <a className="App-link" href="https://reactjs.org" target="_blank" rel="noopener noreferrer">