fix(game_time): use unsigned tick type and enforce positive tick speed

include/Cubed/dev_panel.hpp

@@ -45,7 +45,7 @@ private:
     bool m_gen_thread_running = true;
     int m_theme = 0;
     int m_pre_set_day_tick = 0;
-    int m_pre_set_tick_speed = 0;
+    int m_pre_set_tick_speed = 1;
     void show_about_table_bar();
     void show_biome_table_bar();
     void show_time_table_bar();

include/Cubed/gameplay/game_time.hpp

@@ -1,6 +1,6 @@
 #pragma once
 
-using TickType = long long;
+using TickType = unsigned long long;
 
 constexpr int DEFAULT_PER_TICK_TIME = 50;