LoopAppManager: force-unwrap watch/statusExtension managers in diagnostic report

Both fields are implicitly-unwrapped optionals that are guaranteed to be
set by the time the diagnostic report runs; reflecting the Optional
wrappers produced opaque "Optional(...)" lines that obscured the
underlying state. Matches how the other manager fields above and below
these lines are rendered.

Author: ps2

Loop/Managers/LoopAppManager.swift

@@ -1067,9 +1067,9 @@ extension LoopAppManager: DiagnosticReportGenerator {
             await alertManager.generateDiagnosticReport(),
             await deviceDataManager.generateDiagnosticReport(),
             "",
-            String(reflecting: self.watchManager),
+            String(reflecting: self.watchManager!),
             "",
-            String(reflecting: self.statusExtensionManager),
+            String(reflecting: self.statusExtensionManager!),
             "",
             await loopDataManager.generateDiagnosticReport(),
             "",