[tested] Updated Dockerfile and docker-compose.yml to simplify bot restarts

[hvanmegen]

In response to issue #166 :

Updated Dockerfile and docker-compose.yml to use VOLUME mounts for ./bot/ and ./config/ directories, simplifying container restarts for easier bot changes.

Prior to this change, changes to the bot required a docker-compose build to be triggered. With this change, changes can be made with a simple docker-compose restart.

This change improves the development experience for contributors; it also keeps the resulting container a bit smaller in size by deleting the lists generated by apt-get update which can become quite substantial (>150MB on Ubuntu 22.04)

[hvanmegen]

@karfly can we please have this? it would make iterating much easier and a lot faster :)

[yelloduxx]

Support this. Thank you so much, that's much easier.

[corentinfranc]

Works great!

[Grynn]

Minor suggestion:

Please add .dockeringore

mongodb/

No need to send the whole mongodb to docker engine to build container.

[yelloduxx]

@hvanmegen hello. Does it work with new version v 1.4?

[Natgho]

thank you for PR, merged: https://github.com/Natgho/chatgpt_telegram_bot/pull/4 if you want to contribute for the fork of the active repo, PR's are welcome :)