Backfill member data when a guild is loaded or a new member joins it (#77)

This PR backfills member data when a guild is loaded or a new member
joins it. The reason for that is some actions that happen on member tick
(default role grant, nickname filtering) would only occur if a member
had data related to them (due to being banned or setting a reminder). In
addition, the `.editorconfig` was updated with new inspections provided
by a new release of Rider, 2023.2
See explanations for some changes in comments.

---------

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

src/Commands/KickCommandGroup.cs

@@ -153,7 +153,7 @@ public class KickCommandGroup : CommandGroup
             return Result.FromError(kickResult.Error);
         }
 
-        data.GetMemberData(target.ID).Roles.Clear();
+        data.GetOrCreateMemberData(target.ID).Roles.Clear();
 
         var title = string.Format(Messages.UserKicked, target.GetTag());
         var description = string.Format(Messages.DescriptionActionReason, reason);