Updater: handle storage errors when removing files, fix folder remove routine, prevent unused services from starting (#2432)

* Updater: handle storage errors when removing files
* Updater: properly handle folder removal in post update cleanup stage. Prevent power, desktop and dolphin services from starting on update.
* Desktop, Dolphin, Power: proper handling and message for special boot mode.
* Desktop, Power: add missing TAG
* Updater: unify start skip message and fix double delete in backup worker
* Cli: unify special boot mode message

furi/core/thread.c

@@ -96,9 +96,9 @@ static void furi_thread_body(void* context) {
     furi_assert(thread->state == FuriThreadStateRunning);
 
     if(thread->is_service) {
-        FURI_LOG_E(
+        FURI_LOG_W(
             TAG,
-            "%s service thread exited. Thread memory cannot be reclaimed.",
+            "%s service thread TCB memory will not be reclaimed",
             thread->name ? thread->name : "<unknown service>");
     }