The satellite search only matched exact continuous substrings, so names with
dashes, spaces or brackets (AO-7, ISS (ZARYA), FO-29) could not be found by
queries without those separators. The query is now normalized (lowercased,
non-alphanumeric separators stripped) and split into space-separated tokens;
every token must appear in the normalized satellite name. This makes 'ao7'
match 'AO-7 (AMSAT-OSCAR 7)' and 'iss zarya' match 'ISS (ZARYA)'. Numeric
queries still match catnum exactly.
