Add a new .editorconfig and reformat code (#76)

*I'll start working on features and bugfixes after this PR, I promise*
very short summary:
- no more braceless statements
- braces are on new lines now
- `sealed` on everything that can be `sealed`
- no more awkwardly looking alignment of fields/parameters
- no more `Service` suffix on service fields. yeah.
- no more `else`s. who needs them?
- code style is now enforced by CI

---------

Signed-off-by: Octol1ttle <l1ttleofficial@outlook.com>

src/ColorsList.cs

@@ -5,14 +5,15 @@ namespace Boyfriend;
 /// <summary>
 ///     Contains all colors used in embeds.
 /// </summary>
-public static class ColorsList {
+public static class ColorsList
+{
     public static readonly Color Default = Color.Gray;
-    public static readonly Color Red     = Color.Firebrick;
-    public static readonly Color Green   = Color.PaleGreen;
-    public static readonly Color Yellow  = Color.Gold;
-    public static readonly Color Blue    = Color.RoyalBlue;
+    public static readonly Color Red = Color.Firebrick;
+    public static readonly Color Green = Color.PaleGreen;
+    public static readonly Color Yellow = Color.Gold;
+    public static readonly Color Blue = Color.RoyalBlue;
     public static readonly Color Magenta = Color.Orchid;
-    public static readonly Color Cyan    = Color.LightSkyBlue;
-    public static readonly Color Black   = Color.Black;
-    public static readonly Color White   = Color.WhiteSmoke;
+    public static readonly Color Cyan = Color.LightSkyBlue;
+    public static readonly Color Black = Color.Black;
+    public static readonly Color White = Color.WhiteSmoke;
 }