Move TypeScript to devDependencies to reduce bundle size (#926)

Because we are publishing the post-transpiled, already-bundled 
files to npm, it's safe to hide TypeScript behind the developer
dependencies. Supporting evidence:

https://withblue.ink/2020/06/07/is-this-a-dependency-or-devdependency.html#shipping-npm-packages

package.json

@@ -138,6 +138,7 @@
     "taffydb": "^2.7.3",
     "terser-webpack-plugin": "^5.3.10",
     "ts-node": "^10.9.2",
+    "typescript": "^5.3.3",
     "webpack": "^5.90.1",
     "webpack-cli": "^5.0.1"
   },
@@ -148,7 +149,6 @@
     "eventsource": "^2.0.2",
     "randombytes": "^2.1.0",
     "toml": "^3.0.0",
-    "typescript": "^5.3.3",
     "urijs": "^1.19.1"
   }
 }