Add support for setting locale and timezone to docker image

Dockerfile

@@ -9,6 +9,9 @@ FROM mcr.microsoft.com/dotnet/aspnet:7.0-alpine AS base
 WORKDIR /groceries
 COPY --from=build /out .
 COPY --from=build /src/Groceries/config.ini /config/
-VOLUME /config
+RUN apk add --no-cache icu-libs tzdata
 ENV DOTNET_ENABLEDIAGNOSTICS=0
+ENV DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=false
+EXPOSE 80
+VOLUME /config
 ENTRYPOINT ["./Groceries", "--data", "/config"]

Groceries.sln

@@ -12,6 +12,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 		.editorconfig = .editorconfig
 		.gitignore = .gitignore
 		Dockerfile = Dockerfile
+		README.md = README.md
 	EndProjectSection
 EndProject
 Global

README.md

@@ -7,7 +7,7 @@ The default configuration can be found in `config.ini` once the volume has been
 
 Example usage:
 ```bash
-$ docker run -d -p 8080:80 -v ./groceries:/config ghcr.io/jamsch0/groceries
+$ docker run -d -p 8080:80 -e LANG=en_GB TZ=Europe/London -v ./groceries:/config ghcr.io/jamsch0/groceries
 ```
 
 ## Configuration