Deciding whether a text message is emoji only compares the formatted body to
the plain one and runs a grapheme scan over the whole message. Nothing was
remembered, so both ran again on every recomposition of every visible message.
Remember the decision against the body and the formatted body. The preview
branch moves into the same computation, so the composable wrapper around
containsOnlyEmojis, which had a single caller and existed only to read
LocalInspectionMode, is no longer needed.
hayyaksi
c6fe9786a9