change volume to start timer

src/GraphicalUI/Settings.h

@@ -24,7 +24,7 @@ class Settings {
         std::vector<Keybinds> keybinds;
         int chosenKeybinds;
         int windowSizeMode;
-        int masterVolume;
+        int startTimerLength;
         Gamemode gamemode;
         std::vector<std::pair<PiecesType, int>> selectedPieces;
 
@@ -47,9 +47,9 @@ class Settings {
 
         void changeVideoMode(sf::RenderWindow& window) const;
 
-        bool raiseMasterVolume();
+        bool lengthenStartTimer();
 
-        bool lowerMasterVolume();
+        bool shortenStartTimer();
 
         void setGamemode(Gamemode gamemode);
 
@@ -69,7 +69,7 @@ class Settings {
 
         int getWindowSizeMultiplier() const;
 
-        int getMasterVolume() const;
+        int getStartTimerLength() const;
 
         const std::vector<std::pair<PiecesType, int>>& getSelectedPieces() const;
 };