fix: add templates & ics to docker build

Author: Thechi2000

Dockerfile

@@ -16,6 +16,9 @@ RUN cargo build-deps --release
 COPY src ./src
 RUN cargo build --release
 
+COPY ics ./ics
+COPY templates ./templates
+
 # Copies build result into runtime image
 FROM runtime
 WORKDIR /app