fixed: #179

Out of bounds write on `Array.insert` when array is at capacity.

core/container/array.onyx

@@ -165,12 +165,12 @@ Array.insert :: (arr: &[..] $T, idx: u32, x: T) -> bool {
     if idx > arr.count do return false;
     if !Array.ensure_capacity(arr, arr.count + 1) do return false;
 
-    arr.count += 1;
     while i := arr.count; i > idx {
         arr.data[i] = arr.data[i - 1];
         i -= 1;
     }
 
+    arr.count += 1;
     arr.data[idx] = x;
     return true;
 }