Change camelCase to PascalCase in code style (#2329)

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

CODING_STYLE.md

@@ -52,7 +52,7 @@ Almost everything in flipper firmware is built around this concept.
 
 ## Naming
 
-### Type names are CamelCase
+### Type names are PascalCase
 
 Examples: