Optimising data type rendering

As we have finished rendering data as table and chart, the next step is to visualize data type/table schema information.

## Date types

As of https://github.com/GreptimeTeam/greptimedb/tree/v0.1.0-alpha-20221205-weekly, we have following data types supported:

- Null (can be ignored when rendering schema)
- Boolean
- Numbers:
- Int8
- Int16
- Int32
- Int64
- UInt8
- UInt16
- UInt32
- UInt64
- Float32
- Float64
- Strings:
- Binary bytes (not supported for now)
- String
- Time and date:
- Date
- DateTime
- Timestamp
- Compound types
- List (not well supported at the moment, ignored for now)

https://github.com/GreptimeTeam/greptimedb/blob/v0.1.0-alpha-20221205-weekly/src/datatypes/src/data_type.rs#L34

So the main types we going to render are:

- Boolean
- Number
- Strings
- Date time types

## Rendering

How we are rendering these types:

- Use icon and tooltip for table schema tree
- Use icon and tooltip for result table row header
- Use custom styles for result table content:
- use special style for string, hex bytes
- use special style for date time types, add readable tooltip for timestamps