[App] fix a typo

src/App/PropertyStandard.h

@@ -154,12 +154,12 @@ public:
      */
     void setEnums(const char** plEnums);
     /** set the enum by a string
-     * is slower the setValue(long). Use long if possible
+     * is slower than setValue(long). Use long if possible
      */
     void setValue(const char* value);
     /** set directly the enum value
      * In DEBUG checks for boundaries.
-     * Is faster then using setValue(const char*).
+     * Is faster than using setValue(const char*).
      */
     void setValue(long);