Eel-ectric Hotfix 0.4.0p2

[h2]Early Access 0.4.0p2[/h2]

• Fixed the inefficient grid warning not having a proper tooltip set.
  
• Fixed the gears in the Research Station panel not stopping when it is not researching.
  
• Fixed the upgrade button's arrow being greyed out even when the button could be pressed.
  
• Fixed the Seaweed visual growth not fully growing.
  
• Fixed inefficient energy grid warning not popping up when the gamespeed was paused.