[docs] Update self-hosting docs for configurable app urls (#4565)

docs/docs/self-hosting/guides/web-app.md

@@ -27,7 +27,7 @@ longer term, then it is recommended to follow the Docker approach.
 >
 > This docker image is still in testing stage and it might show up with some
 > unknown variables in different scenarios. But this image has been tested on a
-> production ente site.
+> production Ente site.
 >
 > Recurring changes might be made by the team or from community if more
 > improvements can be made so that we are able to build a full-fledged docker
@@ -44,9 +44,9 @@ COPY apps/ .
 # Will help default to yarn versoin 1.22.22
 RUN corepack enable
 
-# Configure Albums and Accounts Endpoints
-ENV NEXT_PUBLIC_ENTE_ALBUMS_ENDPOINT=https://your-domain.com
-ENV NEXT_PUBLIC_ENTE_ACCOUNTS_URL=https://your-domain.com
+# Endpoint for Ente Server
+NEXT_PUBLIC_ENTE_ENDPOINT=https://your-ente-endpoint.com
+NEXT_PUBLIC_ENTE_ALBUMS_ENDPOINT=https://your-albums-endpoint.com
 
 RUN yarn cache clean
 RUN yarn install --network-timeout 1000000000
@@ -124,8 +124,6 @@ ente-web:
         - 3003:3003
         - 3004:3004
     environment:
-        - NEXT_PUBLIC_ENTE_ALBUMS_ENDPOINT=https://your-domain.com
-        - NEXT_PUBLIC_ENTE_ACCOUNTS_URL=https://your-domain.com
         - NODE_ENV=development
     restart: always
 ```
@@ -139,8 +137,6 @@ docker compose up -d # --build
 docker compose logs <container-name>
 ```
 
-Next part is to configure a [web server](#web-server-configuration).
-
 ## Without Docker / Docker compose
 
 One way to run all the apps together without Docker is by using
@@ -150,6 +146,8 @@ both in dev server mode as well as static files.
 
 The below configuration will run the apps in dev server mode.
 
+
+
 ### Install PM2
 
 ```sh
@@ -207,6 +205,20 @@ pm2 start
 pm2 logs all
 ```
 
+## Configure App Endpoints 
+
+> [!NOTE] 
+> Previously, this was dependent on the env variables `NEXT_ENTE_PUBLIC_ACCOUNTS_ENDPOINT`
+> and etc. Please check the below documentation to update your setup configurations
+
+You can configure the web endpoints for the other apps including Accounts, Albums
+Family and Cast in your `museum.yaml`` configuration file. Checkout 
+[`local.yaml`](https://github.com/ente-io/ente/blob/543411254b2bb55bd00a0e515dcafa12d12d3b35/server/configurations/local.yaml#L76-L89)
+to configure the endpoints. Make sure to setup up your DNS Records accordingly to the 
+similar URL's you set up in `museum.yaml``
+
+Next part is to configure the web server.
+
 # Web server configuration
 
 The last step ahead is configuring reverse_proxy for the ports on which the apps