[SysUI][Floaty] Add mechanism to decide when to draw squeeze effect

* Adds a flow to detect changes in global security settings of LPP
* Combines above flow with flow which detects LPP
* Combined flow is used to determine when to draw the squeeze effect

Bug: 399263897
Flag: com.android.systemui.shared.enable_lpp_squeeze_effect
Change-Id: I338a4097163989f95e5bd22b9f60fea9f7209f19