feat: Add store to manage Articles (#5048)

Co-authored-by: Pranav Raj S <pranav@chatwoot.com>

app/javascript/dashboard/store/modules/helpCenterArticles/specs/fixtures.js

@@ -0,0 +1,53 @@
+export default {
+  articles: {
+    byId: {
+      1: {
+        id: 1,
+        category_id: 1,
+        title: 'Documents are required to complete KYC',
+        content:
+          'The submission of the following documents is mandatory to complete registration, ID proof - PAN Card, Address proof',
+        description: 'Documents are required to complete KYC',
+        status: 'draft',
+        account_id: 1,
+        views: 122,
+        author: {
+          id: 5,
+          account_id: 1,
+          email: 'tom@furrent.com',
+          available_name: 'Tom',
+          name: 'Tom Jose',
+        },
+      },
+      2: {
+        id: 2,
+        category_id: 1,
+        title:
+          'How do I change my registered email address and/or phone number?',
+        content:
+          'Kindly login to your Furrent account to chat with us or submit a request and we would be glad to help you update the contact details on your account.',
+        description: 'Change my registered email address and/or phone number',
+        status: 'draft',
+        account_id: 1,
+        views: 121,
+        author: {
+          id: 5,
+          account_id: 1,
+          email: 'tom@furrent.com',
+          available_name: 'Tom',
+          name: 'Tom Jose',
+        },
+      },
+    },
+    allIds: [1, 2],
+    uiFlags: {
+      byId: {
+        1: { isFetching: false, isUpdating: true, isDeleting: false },
+      },
+    },
+  },
+  uiFlags: {
+    allFetched: false,
+    isFetching: true,
+  },
+};