Added validate script before save in meta data point

[Patrykb0802]

To Reproduce

1. Go to Data sources
2. Create Meta Data Source
3. Click on "Edit" in Meta Data Source
4. Inside freshly created Meta Data Source, any Data Point
5. While creating data point in Script window type incorrect code e.g.:
6. You are able to save the data point -> error

Expected behavior Save button should be hidden until validation of the script will run correctly

Desktop:

• OS: Windows 11
• Browser Chrome
• Version 2.7.5.3