Error while trying to any FTS Object with name containing spaces

If a user creates any FTS Object such as configuration, parser, dictionary, etc. with name containing spaces such as "a b" and tries to drop it via pgAdmin application via context menu in object browser, the user gets an error saying, "Error: invalid syntax near b...". The problem is the object are not quoted in the sql query because of which we get this error. Attached is the patch that fixes this issue.

Thanks,
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