Fixed incorrect Trackable typing and typos

[thelegendaryjohn]

No description provided.

[Sleitnick]

The leading pipe is supported. If you want to add that back, I can accept this for the typo fix

[thelegendaryjohn]

@Sleitnick This is the output I got trying to run wally-package-types

error: Failed to create new link contents: error occurred while creating ast: unexpected token `|`. (starting from line 38, character 2 and ending on line 38, character 3)
additional information: unexpected token, this needs to be a statement
error occurred while creating ast: unexpected token `|`. (starting from line 39, character 2 and ending on line 39, character 3)
additional information: unexpected expression when looking for a statement
error occurred while creating ast: unexpected token `|`. (starting from line 39, character 2 and ending on line 39, character 3)
....

Removing the leading pipe made it work, so I figured