feat: Add campaigns in web widget (#2227)

* add campaign store(getter, actions and mutations)

* add campaign store module

* add get campaigns api

* add fetch campaign action widget load

* add specs

* code cleanup

* trigger campaig api fixes

* integrate campaign trigger action

* code cleanup

* revert changes

* trigger api fixes

* review fixes

* code beautification

* chore: Fix multiple campaigns being send because of race condition

* chore: rubocop

* chore: Fix specs

* disable campaigns

Co-authored-by: Nithin David Thomas <webofnithin@gmail.com>
Co-authored-by: Sojan <sojan@pepalo.com>

app/javascript/widget/store/modules/specs/campaign/data.js

@@ -0,0 +1,86 @@
+export const campaigns = [
+  {
+    id: 1,
+    title: 'Welcome',
+    description: null,
+    account_id: 1,
+    inbox: {
+      id: 37,
+      channel_id: 1,
+      name: 'Chatwoot',
+      channel_type: 'Channel::WebWidget',
+    },
+    sender: {
+      account_id: 1,
+      availability_status: 'offline',
+      confirmed: true,
+      email: 'sojan@chatwoot.com',
+      available_name: 'Sojan',
+      id: 10,
+      name: 'Sojan',
+    },
+    message: 'Hey, What brings you today',
+    enabled: true,
+    trigger_rules: {
+      url: 'https://github.com',
+      time_on_page: 10,
+    },
+    created_at: '2021-05-03T04:53:36.354Z',
+    updated_at: '2021-05-03T04:53:36.354Z',
+  },
+  {
+    id: 11,
+    title: 'Onboarding Campaign',
+    description: null,
+    account_id: 1,
+    inbox: {
+      id: 37,
+      channel_id: 1,
+      name: 'GitX',
+      channel_type: 'Channel::WebWidget',
+    },
+    sender: {
+      account_id: 1,
+      availability_status: 'offline',
+      confirmed: true,
+      email: 'sojan@chatwoot.com',
+      available_name: 'Sojan',
+      id: 10,
+    },
+    message: 'Begin your onboarding campaign with a welcome message',
+    enabled: true,
+    trigger_rules: {
+      url: 'https://chatwoot.com',
+      time_on_page: '20',
+    },
+    created_at: '2021-05-03T08:15:35.828Z',
+    updated_at: '2021-05-03T08:15:35.828Z',
+  },
+  {
+    id: 12,
+    title: 'Thanks',
+    description: null,
+    account_id: 1,
+    inbox: {
+      id: 37,
+      channel_id: 1,
+      name: 'Chatwoot',
+      channel_type: 'Channel::WebWidget',
+    },
+    sender: {
+      account_id: 1,
+      availability_status: 'offline',
+      confirmed: true,
+      email: 'nithin@chatwoot.com',
+      available_name: 'Nithin',
+    },
+    message: 'Thanks for coming to the show. How may I help you?',
+    enabled: false,
+    trigger_rules: {
+      url: 'https://noshow.com',
+      time_on_page: 10,
+    },
+    created_at: '2021-05-03T10:22:51.025Z',
+    updated_at: '2021-05-03T10:22:51.025Z',
+  },
+];