[https://github.com/tracim/tracim/issues/825] added config js file for environment (eg. apiUrl)

frontend/.gitignore

 dist/asset/tracim.app.entry.js
 dist/asset/tracim.vendor.bundle.js
 dist/asset/images/
+configEnv.js

frontend/configEnv.js.sample

+export const apiUrl = 'http://localhost:6543/api/v2'

frontend/src/helper.js

+import { apiUrl as configApiUrl } from '../configEnv.js'
+
 export const FETCH_CONFIG = {
   headers: {
     'Accept': 'application/json',
     'Content-Type': 'application/json'
   },
-  apiUrl: 'http://localhost:6543/api/v2',
+  apiUrl: configApiUrl,
   mockApiUrl: 'http://localhost:3001' // @todo: better to use one url only and use proxy on mock api to point to real api (if implemented)
 }
 

install_frontend_dependencies.sh

   npm i
   log "npm link tracim_frontend_lib"
   npm link tracim_frontend_lib
+  log "cp config.js.sample config.js"
+  cp configEnv.js.sample configEnv.js
 )