Fix minor compiler warnings (#1200)

* Fix compiler warning

Fix compiler warning about comparing signed with unsigned.

* Fix minor bug

category->size() is unsigned int, not long unsigned int

* Typo

Co-authored-by: Peter Feerick <peter.feerick@gmail.com>

radio/src/gui/colorlcd/menu_screen.cpp

@@ -58,7 +58,7 @@ void ScreenMenu::updateTabs()
     }
   }
 
-  // set the active tab to the currently sown screen on the MainView
-  if ((g_model.view + 1) < getTabs())
+  // set the active tab to the currently shown screen on the MainView
+  if ((unsigned)(g_model.view + 1) < getTabs())
     setCurrentTab(g_model.view + 1);
 }

radio/src/gui/colorlcd/model_select.cpp

@@ -431,7 +431,7 @@ class CategoryEditPage : public PageTab
 
         // Details
         char cnt[19];
-        snprintf(cnt, sizeof(cnt), "%lu %s", category->size(), STR_MODELS);
+        snprintf(cnt, sizeof(cnt), "%u %s", category->size(), STR_MODELS);
         new StaticText(window, grid.getFieldSlot(3,1), cnt);
 
         if(category->empty()) {