Copy/Export rows as SQL corrupts json/jsonb values with quotes or backslashes

In the Table Editor, "Copy rows as SQL" and "Export table as SQL" (both go through `formatTableRowsToSQL` in `apps/studio/components/interfaces/TableGridEditor/TableEntity.utils.ts`) generate broken SQL for json/jsonb columns. The json branch does: ``` JSON.stringify(val).replace(/\\"/g, '"').replace(/'/g, "''").replace('"', "'").replace(/.$/, "'") ``` Two problems: - A json value with a double quote inside a string (e.g. `{"note": "say \"hi\""}`) produces invalid SQL. Reimporting it fails with `invalid input syntax for type json`. - A json value with a backslash (a Windows path, a `\n`, a `\uXXXX`, a regex) gets every backslash doubled, so the restored value silently differs from the original. Since this is a backup/migration feature, both are bad: one breaks the export outright, the other corrupts data quietly. Repro: ```sql create table demo (id int, metadata jsonb); insert into demo values (1, jsonb_build_object('note', 'say "hi"')), (2, jsonb_build_object('path', 'C:\Users\me')); ``` Select the two rows in the Table Editor and Copy as SQL. The generated INSERT for row 1 is invalid JSON (won't run), and row 2 comes out with `C:\\\\Users\\\\me` instead of `C:\\Users\\me`. The text/varchar branch a few lines down already does the right thing (`'${val.replaceAll("'", "''")}'`). The json value just needs the same single-quote escaping; it already arrives as JSON text (or an object that should be stringified first).