Coalesce some allocations (#3747)

* View: Coalesce view model allocations
* SceneManager: Coalesce AppScene allocations
* BufferStream: Coalesce Buffer allocations
* ProtocolDict: Coalesce dict allocations
* DigitalSignal: Coalesce buffer allocations

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

applications/services/gui/view_i.h

@@ -9,8 +9,8 @@
 #include <furi.h>
 
 typedef struct {
-    void* data;
     FuriMutex* mutex;
+    uint8_t data[];
 } ViewModelLocking;
 
 struct View {