rename preview to v2

Author: Artem

.circleci/redisstack/build_modules.sh

@@ -4,7 +4,7 @@ PLATFORM=${PLATFORM:-'linux'}
 ELECTRON_VERSION=$(cat electron/version)
 ARCH=${ARCH:-'x64'}
 #FILENAME="RedisInsight-$PLATFORM.$VERSION.$ARCH.zip"
-FILENAME="RedisInsight-preview-web-$PLATFORM.$ARCH.tar.gz"
+FILENAME="RedisInsight-V2-web-$PLATFORM.$ARCH.tar.gz"
 
 # reinstall backend prod dependencies only (optimise space)
 rm -rf redisinsight/api/node_modules