chore/breaking: simplify scalar types

[ra0x3]

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Description

• PR simplifies our usage of scalars
• We had a lot of scalars that we weren't really using
  • I think previously the idea was to "alias things in a friendly way", but aliasing turned out to just generate a lot of unnecessary scalars
  • After some time, I think it's better to have fewer scalars
    • This was first suggested by JC (which I agreed with)
• Also changes the name of some scalars to make them more idiomatic
  • E.g., Int8 to I64 to be more in line with GraphQL standards (obviously we're still using types that GQL doesn't implement)
• Obviously this is a pretty breaking change
  • I'll be sure to include a prominent section in the release changelog for this

Testing steps

• CI should pass
• QA run report is attached

Changelog

• chore/breaking: simplify scalar types

[ra0x3]

QA script results on this branch
Rashads-Air.lan-2023-09-28.indexer-qa.txt