Rename pannel to panel

src/panel/panel.cpp

@@ -4,4 +4,4 @@
 // pannel implementation
 //
 
-#include "pannel.hpp"
+#include "panel.hpp"

src/panel/panel.hpp

@@ -18,10 +18,10 @@
 #include <SDL2/SDL_ttf.h>
 
 namespace dashboard {
-    class pannel {
+    class panel {
     public:
-        pannel() = default;
-        ~pannel() = default;
+        panel() = default;
+        ~panel() = default;
 
         virtual void draw() = 0;