Implement a more robust Config (#60)

* Implement a more robust Config

This moves the configuration variables from the `.env` file to a new `bewcloud.config.ts` file. Note that DB connection and secrets are still in the `.env` file.

This will allow for more reliable and easier personalized configurations, and was a requirement to start working on adding SSO (#13).

For now, `.env`-based config will still be allowed and respected (overriden by `bewcloud.config.ts`), but in the future I'll probably remove it (some major upgrade).

* Update deploy script to also copy the new config file

.env.sample

@@ -1,5 +1,4 @@
 PORT=8000
-BASE_URL="http://localhost:8000"
 
 POSTGRESQL_HOST="postgresql" # docker container name or external hostname/IP
 POSTGRESQL_USER="postgres"
@@ -12,15 +11,3 @@ JWT_SECRET="fake"
 PASSWORD_SALT="fake"
 
 BREVO_API_KEY="fake"
-
-CONFIG_ALLOW_SIGNUPS="false"
-CONFIG_ENABLED_APPS="news,notes,photos,expenses" # dashboard and files cannot be disabled
-CONFIG_FILES_ROOT_PATH="data-files"
-CONFIG_ENABLE_EMAILS="false" # if true, email verification will be required for signups (using Brevo)
-CONFIG_ENABLE_FOREVER_SIGNUP="true" # if true, all signups become active for 100 years
-# CONFIG_ALLOWED_COOKIE_DOMAINS="example.com,example.net" # can be set to allow more than the BASE_URL's domain for session cookies
-# CONFIG_SKIP_COOKIE_DOMAIN_SECURITY="true" # if true, the cookie domain will not be strictly set and checked against. This skipping slightly reduces security, but is usually necessary for reverse proxies like Cloudflare Tunnel.
-
-# CUSTOM_TITLE=""
-# CUSTOM_DESCRIPTION=""
-HELP_EMAIL="help@bewcloud.com" # if empty, "need help" sections will be disabled