build: Improve Docker dev setup, add nodemon config (#1145)

* Updated the base image in `Dockerfile.dev` from `node:18-alpine` to `node:lts-alpine` to use more or less the same as for production docker build (where the client is build lts and server is 18... so yeah not really...)
* Removed the `USER node` directive, to prevent permission issues as we hook the whole folder into the container.
* Modified the `docker-compose-dev.yml` file to enhance the database healthcheck. The new healthcheck ensures not only postgres is ready but also the database is ready by running a sample query (`SELECT 1`) and adjusts the interval, retries, and start period for better reliability.
* Added a `nodemon.json` configuration file to watch only relevant files (node_modules would be ignored but not files like the python venv) and avoid rapid successive restarts with the delay.

docker-compose-dev.yml

@@ -109,10 +109,15 @@ services:
       - POSTGRES_DB=planka
       - POSTGRES_HOST_AUTH_METHOD=trust
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U postgres -d planka"]
-      interval: 10s
+      test:
+        [
+          "CMD-SHELL",
+          "pg_isready -U ${POSTGRES_USER:-postgres} -d ${POSTGRES_DB:-planka} && psql -U ${POSTGRES_USER:-postgres} -d ${POSTGRES_DB:-planka} -c 'SELECT 1'",
+        ]
+      interval: 3s
       timeout: 5s
-      retries: 5
+      retries: 15
+      start_period: 10s
 
 volumes:
   db-data: