feat: support "ts" as a time field

[Maksym Kryvchun]

[Mihai Țimbota-Belin]

Hi @hedhyw, I'd like to work on this issue. Can you assign it to me, please?

[Maksym Kryvchun]

Sure, thank you!

[Maksym Kryvchun]

json-log-viewer/internal/pkg/source/helper.go

Line 11 in aa8e0d3

 timeValue := extractValue(value, "timestamp", "time", "t") 

[Maksym Kryvchun]

Resolved in #27