[FL-2431, FL-2419] SubGhz: bugfixes (#1098)

* [FL-2431] SubGhz: fix Restart with an error (HardFault), while maintaining the RAW signal.
* Stream: fix adding maximum string length to arguments
* [FL-2419] SubGhz: fix flipper hang/Fatal Error when running edited Sub-GHz file.
* SubGhz: remove replace strcpy with strncpy, smaller text buffer and canary
* SubGhz: log key loading before load happen, rollback only rx message handling

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

applications/storage/storage.h

@@ -297,13 +297,15 @@ bool storage_simply_mkdir(Storage* storage, const char* path);
  * @param filename 
  * @param fileextension 
  * @param nextfilename return name
+ * @param max_len  max len name
  */
 void storage_get_next_filename(
     Storage* storage,
     const char* dirname,
     const char* filename,
     const char* fileextension,
-    string_t nextfilename);
+    string_t nextfilename,
+    uint8_t max_len);
 
 #ifdef __cplusplus
 }