- More code cleanup and codestyle updates

- Fixed some possible nullref exceptions
- Methods signatures now have up to 3 parameters before breakaing down each parameter in a separate line
- Method invocations have the same rule, except the first parameter will be in the same line as the invocation to prevent some ugliness when passing lambas as arguments
- Applied many more codestyles
- Extensions folder fully reformatted

src/NadekoBot/Modules/Searches/PokemonSearchCommands.cs

@@ -14,9 +14,7 @@ public partial class Searches
         public IReadOnlyDictionary<string, SearchPokemonAbility> PokemonAbilities => _cache.LocalData.PokemonAbilities;
 
         public PokemonSearchCommands(IDataCache cache)
-        {
-            _cache = cache;
-        }
+            => _cache = cache;
 
         [NadekoCommand, Aliases]
         public async Task Pokemon([Leftover] string pokemon = null)