IDs should be validated for the correct format

[elsylambert]

Following is the syntax for IDs in TSVs:
Four character alphanumeric string (e.g. swi9) that is unique within the file
The ID must start with a lowercase letter in the range a…z and the next three characters must be a lowercase letter or a digit, i.e., a…z or 0…9.
The app must be able to detect the incorrect ID and notify user to fix the ID either manually or uniquely generated by the app(Just like it does when adding a new row).

When an ID starts with Number, it offsets TCC to show that row on top of the file. It also breaks the auto generation of ID for a new row.