Update Dockerfile and remove log_handler.py from project

The Dockerfile was updated to use the `python:3.12-alpine`
base image, set the working directory to `/app`, and remove
the `COPY` instruction for the `CustomModules` directory.
Environment variables `TERM=xterm` and `PYTHONUNBUFFERED=1`
were added.

In the `WebhookCreator.pyproj` file, the `<Compile>` entry
for `CustomModules\log_handler.py` was removed, excluding
this file from the project.

Author: Serpensin

WebhookCreator/Dockerfile

@@ -2,7 +2,6 @@ FROM python:3.12-alpine
 
 WORKDIR /app
 
-COPY CustomModules ./CustomModules
 COPY *.py .
 COPY requirements.txt .
 

WebhookCreator/WebhookCreator.pyproj

@@ -26,7 +26,6 @@
     <EnableUnmanagedDebugging>false</EnableUnmanagedDebugging>
   </PropertyGroup>
   <ItemGroup>
-    <Compile Include="CustomModules\log_handler.py" />
     <Compile Include="Dockerfile" />
     <Compile Include="main.py" />
     <Compile Include="__init__.py" />