Use setQsExpanded to start expansion early

If isQsExpanded is true, it means that we are either in QS or expanding
to QS. In that case, have a minimum for the expansion value of 1e-5 so
compose will start expanding things and listening in QS. This causes
listening to trigger one frame earlier in the CUJ.

We only do this for the purposes of STL. For listening in QS, we wait
for the expansion to be greater than this.

Test: manual, perfetto
Test: atest QSFragmentComposeViewModelTest
Flag: com.android.systemui.qs_compose_fragment_early_expansion
Bug: 414856236

Change-Id: I7096693f517f91659fc27c335f87579733f2e13f