[ fix ] make it build

[Z-snails]

Due to various changes to idris2, there were some errors, which I have fixed.

• Monadic do notation no longer silently discards values, so added ignore
• Multiline strings use """ and have more newlines
• The version field in .ipkg files is now used
• some returns List1, so added forget

[Z-snails]

Draft, because other changes are still causing problems.