Update Dockerfile to include missing Python dependency and ensure file copying

[tjsweetblack]

This pull request updates the Dockerfile to resolve a missing dependency issue that prevented Profanity from starting in the Docker container. Specifically:

Added Python 3 and necessary development libraries to the Dockerfile dependencies.
Ensured all source files are correctly copied into the container during the build process.

These changes enable Profanity to build and run successfully within the Debian-based Docker container.

How to Test the Functionality

**Build the Docker Image:**

docker build -t profanity_test .

Run the Container:

docker run -it profanity_test /bin/bash

Navigate to the Profanity Directory:

cd /usr/src/profanity

Start Profanity:

./profanity

Verify:

Confirm that Profanity starts without any errors related to missing libraries.
Test basic commands within Profanity to ensure functionality.

[jubalh]

Thanks for your PR. I left a couple of comments. Basically you mention in your commit that you want to add python3 but in reality it seems you are doing a lot of more things in this change.

[tjsweetblack]

Sorry it is my first pull request, I did switch the bottom lines of the docker file to the top and set the copy command to .. which means all, in order to copy all files to the docket image for the line switch it’s more about formatting only.

[jubalh]

Please answer in the dedicated fields above when you are ready :)
And then superseide this PR by ammending the commit. Thanks!

[jubalh]

@tjsweetblack ping

[jubalh]

No response.