Fix error on cell toggle before step

src/commands/slash/conwaysgameoflife.js

@@ -229,6 +229,8 @@ const moduleFuncs = {
         constructor(size) {
           this.size = size;
           this.grid = this.createGrid();
+          this.history = [this.cloneGrid(this.grid)];
+          this.currentStep = 0;
         }
 
         createGrid() {
@@ -286,11 +288,6 @@ const moduleFuncs = {
         }
 
         step(n = 1) {
-          if (!this.history) {
-            this.history = [this.cloneGrid(this.grid)];
-            this.currentStep = 0;
-          }
-
           if (n === 0) return;
 
           if (n > 0) {
@@ -341,7 +338,7 @@ module.exports = {
   ...moduleFuncs,
   data: new SlashCommandBuilder()
     .setName('gameoflife')
-    .setDescription("Simulates conway's game of life (In development)")
+    .setDescription("Simulates conway's game of life")
     .addIntegerOption((option) =>
       option
         .setName('size')