feat(collectibles): add form validation error when committee not set (#…

…3750)

Description
---
- Add alert on save click when no committee members were added
- Adds eslint rules (rules chosen to limit lines of code changed, not based on any preference I have, defaults are probably best)

Motivation and Context
---
Dont submit the form unless at least one committee member is chosen

How Has This Been Tested?
---
Manually

applications/tari_collectibles/web-app/.eslintrc.js

@@ -0,0 +1,19 @@
+module.exports = {
+    env: {
+        browser: true,
+        es2021: true,
+    },
+    extends: ["plugin:react/recommended"],
+    parserOptions: {
+        ecmaFeatures: {
+            jsx: true,
+        },
+        ecmaVersion: 12,
+        sourceType: "module",
+    },
+    plugins: ["react"],
+    rules: {},
+    settings: {
+        react: {version: "detect"},
+    },
+};

applications/tari_collectibles/web-app/.prettierrc

@@ -3,5 +3,7 @@
   "trailingComma": "all",
   "printWidth": 100,
   "tabWidth": 4,
-  "bracketSpacing": false
+  "bracketSpacing": false,
+  "singleQuote": false,
+  "jsxSingleQuote": false
 }