fix minor misspellings and typos

[PhilterPaper]

trueloaded.sql fix some spelling errors, typos, and grammar errors. Also change "Shopping Bag" to "Shopping Cart" for consistency.

[PhilterPaper]

E.g., 'example' misspelled as 'exmaple' many times. Some sentences, particularly in sample store customer-facing text, restructured to clarify and read more easily.

[tmccaff57]

I am guessing this development dead? Has't been updated in years

[PhilterPaper]

Well, 10 months without activity does seem like quite a while. Keep in mind that many of Holbi's developers are in Ukraine, which is something of a war zone at the moment, so we need to be patient. That said, I would think they could shift some of their minor maintenance to London and elsewhere, at least for the duration. Per #152, I have offered to assist in updating the SQL, but have received no reply.