[FL-2578] Updater fixes related to /int handling (#1359)

* Updater fixes related to /int handling
  updater: performing factory reset on update, checking for LFS free space before updating, fixed improper error handling on backup/restore operations, rebalanced update stage weights for better progress visuals
  scripts: added CLI output validation for selfupdate.py
  storage: added pointer validation in storage_int_common_fs_info
  desktop: fixed crash on rendering invalid slideshows
* Typo fix
* rpc: Updated protobuf to 0.9
* rpc: removed updater status conversion

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

applications/desktop/helpers/slideshow.c

@@ -12,6 +12,7 @@
 struct Slideshow {
     Icon icon;
     uint32_t current_frame;
+    bool loaded;
 };
 
 #pragma pack(push, 1)
@@ -34,6 +35,7 @@ _Static_assert(sizeof(SlideshowFrameHeader) == 2, "Incorrect SlideshowFrameHeade
 
 Slideshow* slideshow_alloc() {
     Slideshow* ret = malloc(sizeof(Slideshow));
+    ret->loaded = false;
     return ret;
 }
 
@@ -52,7 +54,7 @@ void slideshow_free(Slideshow* slideshow) {
 bool slideshow_load(Slideshow* slideshow, const char* fspath) {
     Storage* storage = furi_record_open("storage");
     File* slideshow_file = storage_file_alloc(storage);
-    bool load_success = false;
+    slideshow->loaded = false;
     do {
         if(!storage_file_open(slideshow_file, fspath, FSAM_READ, FSOM_OPEN_EXISTING)) {
             break;
@@ -80,12 +82,16 @@ bool slideshow_load(Slideshow* slideshow, const char* fspath) {
                frame_header.size) {
                 break;
             }
-            load_success = (frame_idx + 1) == header.frame_count;
+            slideshow->loaded = (frame_idx + 1) == header.frame_count;
         }
     } while(false);
     storage_file_free(slideshow_file);
     furi_record_close("storage");
-    return load_success;
+    return slideshow->loaded;
+}
+
+bool slideshow_is_loaded(Slideshow* slideshow) {
+    return slideshow->loaded;
 }
 
 bool slideshow_advance(Slideshow* slideshow) {

applications/desktop/helpers/slideshow.h

@@ -8,6 +8,7 @@ Slideshow* slideshow_alloc();
 
 void slideshow_free(Slideshow* slideshow);
 bool slideshow_load(Slideshow* slideshow, const char* fspath);
+bool slideshow_is_loaded(Slideshow* slideshow);
 void slideshow_goback(Slideshow* slideshow);
 bool slideshow_advance(Slideshow* slideshow);
 void slideshow_draw(Slideshow* slideshow, Canvas* canvas, uint8_t x, uint8_t y);