meta: add array-type rule to eslint

This forces array typings to be more consistent and readable.

.eslintrc.json

@@ -109,7 +109,8 @@
         "@typescript-eslint/ban-ts-ignore": "off",
         "@typescript-eslint/no-use-before-define": "off",
         "@typescript-eslint/no-misused-promises": ["error", { "checksVoidReturn": false }],
-        "@typescript-eslint/member-ordering": "error"
+        "@typescript-eslint/member-ordering": "error",
+        "@typescript-eslint/array-type": ["error", { "default": "array-simple" }]
       }
     },
     {