chore: updated MONGODB_URL and OPENID_CLIENT_SECRET

Dockerfile

@@ -25,8 +25,8 @@ RUN --mount=type=secret,id=MONGODB_URL,mode=0444 \
     APP_COLOR="${APP_COLOR:="$(cat /defaults/APP_COLOR)"}" && export APP_COLOR \
     && APP_NAME="${APP_NAME:="$(cat /defaults/APP_NAME)"}" && export APP_NAME \
     && OPENID_CLIENT_ID="${OPENID_CLIENT_ID:="$(cat /defaults/OPENID_CLIENT_ID)"}" && export OPENID_CLIENT_ID \
-    && MONGODB_URL=$(cat /run/secrets/MONGODB_URL > /dev/null | grep '^') && export MONGODB_URL && \
-    OPENID_CLIENT_SECRET=$(cat /run/secrets/OPENID_CLIENT_SECRET > /dev/null | grep '^') && export OPENID_CLIENT_SECRET && \
+    && MONGODB_URL=$(cat /run/secrets/MONGODB_URL) && export MONGODB_URL && \
+    OPENID_CLIENT_SECRET=$(cat /run/secrets/OPENID_CLIENT_SECRET) && export OPENID_CLIENT_SECRET && \
     envsubst < ".env.local.template" > ".env.local" \ 
     && rm .env.local.template