compiler: missing-deriving-strategies suggested fix

Extends the missing-deriving-strategies warning with a suggested fix
that includes which deriving strategies were assumed.

For info about the warning, see comments for
`TcRnNoDerivStratSpecified`, `TcRnNoDerivingClauseStrategySpecified`, &
`TcRnNoStandaloneDerivingStrategySpecified`.

For info about the suggested fix, see
`SuggestExplicitDerivingClauseStrategies` &
`SuggestExplicitStandalanoDerivingStrategy`.

docs: Rewords missing-deriving-strategies to mention the suggested fix.

Resolves #24955