[FL-1995] New dolphin animations (part 1) (#835)

* Desktop Animation (part 1): Ugly naked ohmygod architecture
* fix butthurt, fix locked scene
* Change SD icons, fixes
* Fix level update animation
* Fixes, correct butthurt
* Clean up code
* furi_assert(0) -> furi_crash("msg")
* Gui: rename none layer to desktop, update docs.

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

applications/desktop/helpers/desktop_animation.h

@@ -1,10 +1,55 @@
 #pragma once
 
-#include <furi.h>
-#include <math.h>
-#include <assets_icons.h>
-#include "dolphin/dolphin.h"
-#include "dolphin/helpers/dolphin_state.h"
-#include "time.h"
+#include <stdint.h>
+#include <gui/icon.h>
 
-const Icon* desktop_get_icon();
+typedef struct DesktopAnimation DesktopAnimation;
+
+typedef struct ActiveAnimation ActiveAnimation;
+typedef struct BasicAnimation BasicAnimation;
+
+typedef enum {
+    DesktopAnimationStateBasic,
+    DesktopAnimationStateActive,
+    DesktopAnimationStateLevelUpIsPending,
+    DesktopAnimationStateSDEmpty,
+    DesktopAnimationStateSDEmptyURL,
+    DesktopAnimationStateSDCorrupted,
+} DesktopAnimationState;
+
+struct BasicAnimation {
+    const Icon* icon;
+    uint16_t duration; // sec
+    uint16_t active_cooldown;
+    uint8_t weight;
+    uint16_t butthurt_level_mask;
+};
+
+struct ActiveAnimation {
+    const Icon* icon;
+    uint16_t duration; // sec
+};
+
+typedef struct {
+    const BasicAnimation* basic;
+    const ActiveAnimation* active;
+} PairedAnimation;
+
+typedef void (*AnimationChangedCallback)(void*);
+
+DesktopAnimation* desktop_animation_alloc(void);
+void desktop_animation_free(DesktopAnimation*);
+void desktop_animation_activate(DesktopAnimation* instance);
+void desktop_animation_set_animation_changed_callback(
+    DesktopAnimation* instance,
+    AnimationChangedCallback callback,
+    void* context);
+
+DesktopAnimationState desktop_animation_handle_right(DesktopAnimation* animation);
+
+void desktop_animation_start_oneshot_levelup(DesktopAnimation* animation);
+
+const Icon* desktop_animation_get_animation(DesktopAnimation* animation);
+const Icon* desktop_animation_get_oneshot_frame(DesktopAnimation* animation);
+
+void desktop_start_new_idle_animation(DesktopAnimation* animation);