Feature Request: Improve Table Preview Formatting

[ChandraSaiKarthik]

Description:
When viewing table metadata or structure in the SQL editor, the preview often appears distorted or misaligned, especially when column names and types vary in length. This makes it hard to read and interpret the schema.

[mikeburgh]

Yeah, this is a tricky area, VSCode does not let you do to much to the formatting, and I found the raw markdown format looked better than a table.. but not when that happens.

I have switched it to a table now, and added some smarts to remove empty columns and some other clean ups.

Should be better in 1.17.29 which has been released.