refactor: do not export envs when starting companion

bin/companion

@@ -1,11 +1,11 @@
 #!/usr/bin/env bash
 sh ../env.sh
 
-export UPPYSERVER_DATADIR="./packages/@uppy/companion/output"
-export UPPYSERVER_DOMAIN="localhost:3020"
-export UPPYSERVER_PROTOCOL="http"
-export UPPYSERVER_PORT=3020
-export UPPY_ENDPOINTS=""
-export UPPYSERVER_SECRET="development"
-
-nodemon --exec node ./packages/@uppy/companion/src/standalone/start-server.js
+env \
+  UPPYSERVER_DATADIR="./packages/@uppy/companion/output" \
+  UPPYSERVER_DOMAIN="localhost:3020" \
+  UPPYSERVER_PROTOCOL="http" \
+  UPPYSERVER_PORT=3020 \
+  UPPY_ENDPOINTS="" \
+  UPPYSERVER_SECRET="development" \
+nodemon --watch packages/@uppy/companion/src --exec node ./packages/@uppy/companion/src/standalone/start-server.js

package.json

@@ -92,7 +92,7 @@
     "lint-staged": "lint-staged",
     "release": "./bin/release",
     "start:companion": "sh ./bin/companion",
-    "start": "npm-run-all --parallel watch start:server web:preview",
+    "start": "npm-run-all --parallel watch start:companion web:preview",
     "test:registry": "verdaccio --listen 4002 --config test/endtoend/verdaccio.yaml",
     "test:build": "./bin/endtoend-build",
     "test:build-ci": "./bin/endtoend-build-ci",