fix decimal ISF and default app group

Config.xcconfig

@@ -2,6 +2,6 @@ APP_DISPLAY_NAME = FreeAPS X
 BUILD_VERSION = 0.2.4
 DEVELOPER_TEAM = ##TEAM_ID##
 BUNDLE_IDENTIFIER = ru.artpancreas.$(DEVELOPMENT_TEAM).FreeAPS
-APP_GROUP_ID = group.com.$(DEVELOPMENT_TEAM).loopkit.LoopGroups
+APP_GROUP_ID = group.com.$(DEVELOPMENT_TEAM).loopkit.LoopGroup
 
 #include? "ConfigOverride.xcconfig"

FreeAPS/Sources/Models/Suggestion.swift

@@ -16,7 +16,7 @@ struct Suggestion: JSON, Equatable {
     let temp: TempType?
     let bg: Decimal?
     let reservoir: Decimal?
-    let isf: Int?
+    let isf: Decimal?
     var timestamp: Date?
     var recieved: Bool?
 }