Allow dependency detection to work on devDependencies

This is done to unblock the use case of having most of your dependencies as devDependencies, for CLI's that rely on remix to improve install time by pre-bundling the tool.

Author: nimrossum

packages/remix-dev/cli/commands.ts

@@ -274,7 +274,9 @@ export async function generateEntry(
   }
 
   let pkgJson = await PackageJson.load(rootDirectory);
-  let deps = pkgJson.content.dependencies ?? {};
+  let prodDeps = pkgJson.content.dependencies ?? {};
+  let devDeps = pkgJson.content.devDependencies ?? {};
+  let deps = {...prodDeps, ...devDeps };
 
   let serverRuntime = deps["@remix-run/deno"]
     ? "deno"