Various tweaks and bugfixes

core/src/mindustry/input/Binding.java

@@ -58,6 +58,7 @@ public enum Binding implements KeyBind{
     fullscreen(KeyCode.f11),
     pause(KeyCode.space),
     minimap(KeyCode.m),
+    research(KeyCode.b),
     planet_map(KeyCode.n),
     toggle_menus(KeyCode.c),
     screenshot(KeyCode.p),

core/src/mindustry/input/DesktopInput.java

@@ -240,6 +240,7 @@ public class DesktopInput extends InputHandler{
         if(state.isGame() && !scene.hasDialog() && !(scene.getKeyboardFocus() instanceof TextField)){
             if(Core.input.keyTap(Binding.minimap)) ui.minimapfrag.toggle();
             if(Core.input.keyTap(Binding.planet_map) && state.isCampaign()) ui.planet.toggle();
+            if(Core.input.keyTap(Binding.research) && state.isCampaign()) ui.research.toggle();
         }
 
         if(state.isMenu() || Core.scene.hasDialog()) return;