LibJS: Rename MatchBehavior members back to their old names

I changed this in 6ef1a27 to "match the spec", but the spec calls it
`match exactly` and `match minutes` - so what we had before was correct
and the change made no sense whatsoever.

Userland/Libraries/LibJS/Runtime/Temporal/ZonedDateTime.h

@@ -47,8 +47,8 @@ enum class OffsetBehavior {
 };
 
 enum class MatchBehavior {
-    Exactly,
-    Minutes,
+    MatchExactly,
+    MatchMinutes,
 };
 
 ThrowCompletionOr<BigInt const*> interpret_iso_date_time_offset(GlobalObject&, i32 year, u8 month, u8 day, u8 hour, u8 minute, u8 second, u16 millisecond, u16 microsecond, u16 nanosecond, OffsetBehavior offset_behavior, double offset_nanoseconds, Value time_zone, StringView disambiguation, StringView offset_option, MatchBehavior match_behavior);