BUG: Cell data view wrongly autodetects JSON for text starting with [ or { #1539

Describe the bug
Postgresql text columns starting with [ or { are shown as JSON ("Error parsing JSON") by cell data view's autodetect.

To Reproduce
Steps to reproduce the behavior:

1. Add [ to a cell in a text column
2. Click on the cell
3. Set cell data view to autodetect

Expected behavior
Show text as text (wrap), show valid JSON as JSON.

Version Information (please complete the following information):

• OS: Mac
• App Version: 7.2.4
• Install source: Installer
• Type: Application
• Database engine: PostgreSQL