Mass app fixes for new API

Thanks @Willy-JL for finding issues and fixing many of those apps
Other apps fixed by me

brainfuck.c

@@ -117,15 +117,14 @@ void brainfuck_free(BFApp* brainfuck) {
 
 void brainfuck_show_loading_popup(void* context, bool show) {
     BFApp* brainfuck = context;
-    TaskHandle_t timer_task = xTaskGetHandle(configTIMER_SERVICE_TASK_NAME);
 
     if(show) {
         // Raise timer priority so that animations can play
-        vTaskPrioritySet(timer_task, configMAX_PRIORITIES - 1);
+        furi_timer_set_thread_priority(FuriTimerThreadPriorityElevated);
         view_dispatcher_switch_to_view(brainfuck->view_dispatcher, brainfuckViewLoading);
     } else {
         // Restore default timer priority
-        vTaskPrioritySet(timer_task, configTIMER_TASK_PRIORITY);
+        furi_timer_set_thread_priority(FuriTimerThreadPriorityNormal);
     }
 }
 

worker.h

@@ -1,3 +1,5 @@
+#pragma once
+
 #include "brainfuck_i.h"
 
 void initWorker(BFApp* application);