Tempest rename (#17)

* fixing field backgrounds

* adding shadow weather and volatile spikes

* Update battle-tooltips.ts

* stripping out shadow changes

* adding a default for weather ball

* adding forgotten semicolon

* re-adding removed changes

* re-added shadow changes

* adding better art

* fixing voltaic spike placement

* fixing long standing name swap of fields

* Fixing image reference for corrosive mist

* Updating field backgrounds. Adding fable

* updating ash, blessed, and water surface BGs. Adding tempest, fable, and battlefield

* Updating volcanic top field BG

* updating eclipse field BG and adding undercolony BG

* fixing field backgrounds and undercolony

* changing thunderstorm field name

---------

Co-authored-by: DieterReinert <dieter.reinert@outlook.com>

Author: EvGym

play.pokemonshowdown.com/fx/field-thunderingplateau.png

@@ -558,8 +558,8 @@ License: GPLv2
 	background-size: cover;
 }
 
-.thunderstormfieldweather {
-	background: #CCAAEE url(../fx/field-thunderstormfield.png) no-repeat scroll left top;
+.thunderingplateauweather {
+	background: #CCAAEE url(../fx/field-thunderingplateau.png) no-repeat scroll left top;
 	background-size: cover;
 }