update rules so that they properly error on null. This fixes case where user...

update rules so that they properly error on null. This fixes case where user typed to get past initial value check then backspaced their content to an empty string

src/views/Tasks.vue

@@ -191,9 +191,10 @@ export default {
       timeMenu: false,
       rules: {
         required: (value) => !!value || "Required.",
-        nameLength: (value) => value.length <= 50 || "Max 50 characters",
+        nameLength: (value) =>
+          (value.length <= 50 && value !== null) || "Max 50 characters",
         descriptionLength: (value) =>
-          value.length <= 255 || "Max 255 characters",
+          (value.length <= 255 && value !== null) || "Max 255 characters",
       },
       headers: [
         { text: "Name", value: "name" },