Review replica sync startup delay

[digikata]

Analysis of behavior from issue #3788 seems to show that the start time of replica sync is delayed from start by FLV_SHORT_RECONCILLATION time of a default of 10 seconds. It seems like it should be possible to start the replica sync faster.

Also fix misspelling FLV_SHORT_RECONCILLATION -> FLV_SHORT_RECONCILATION

See fluvio/crates/fluvio-spu/src/replication/follower/controller.rs

[digikata]

Testable using local metadata fluvio cluster start --spu=3 and the test program in 3788

[github-actions[bot]]

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