Yugabyte playing around found possible issues

[ivanahuckova]

• Column have no loading state. When I first click on it, I have only * option and it does not show anything else is loading
• Errors in console
  
• Preview is quite small, I would expect it to be larger to be able to see at least full basic query. Or make it expandable. Or make query inlined so you can see it fully. The same way it is when you copy it or switch to code.
  

• Run query button is different than in other SQL data sources - grey and not blue with run icon
• Nit: It would be nice if in query history you'd see raw sql rather than whole query object. You can achieve this by implementing getQueryDisplayText that would return query.rawSql from the object. (In Loki/Prom it returns query.expr for example.)