POC: chore: use Nx workspace lint rules (#3163)

* chore: use Nx workspace lint rules

Closes #3162

* Fix lint

* Fix lint on BE

* Fix tests

---------

Co-authored-by: Charles Bochet <charles@twenty.com>

tools/eslint-rules/rules/no-hardcoded-colors.spec.ts

@@ -0,0 +1,55 @@
+import { TSESLint } from '@typescript-eslint/utils';
+
+import { rule, RULE_NAME } from './no-hardcoded-colors';
+
+const ruleTester = new TSESLint.RuleTester({
+  parser: require.resolve('@typescript-eslint/parser'),
+});
+
+ruleTester.run(RULE_NAME, rule, {
+  valid: [
+    {
+      code: 'const color = theme.background.secondary;',
+    },
+  ],
+  invalid: [
+    {
+      code: 'const color = "rgb(154,205,50)";',
+      errors: [
+        {
+          messageId: 'hardcodedColor',
+        },
+      ],
+    },
+    {
+      code: 'const color = { test: "rgb(154,205,50)", test2: "#ADFF2F" }',
+      errors: [
+        {
+          messageId: 'hardcodedColor',
+        },
+        {
+          messageId: 'hardcodedColor',
+        },
+      ],
+    },
+    {
+      code: 'const color = { test: `rgb(${r},${g},${b})`, test2: `#ADFF${test}` }',
+      errors: [
+        {
+          messageId: 'hardcodedColor',
+        },
+        {
+          messageId: 'hardcodedColor',
+        },
+      ],
+    },
+    {
+      code: 'const color = "#ADFF2F";',
+      errors: [
+        {
+          messageId: 'hardcodedColor',
+        },
+      ],
+    },
+  ],
+});