feat: add channel icon component (#10471)

This pull request introduces a new `ChannelIcon` component and refactors the existing code to use this component, which simplifies the icon management for different channel types and providers.

app/javascript/dashboard/components-next/icon/specs/provider.spec.js

@@ -0,0 +1,59 @@
+import { useChannelIcon } from '../provider';
+
+describe('useChannelIcon', () => {
+  it('returns correct icon for API channel', () => {
+    const inbox = { channel_type: 'Channel::Api' };
+    const { value: icon } = useChannelIcon(inbox);
+    expect(icon).toBe('i-ri-cloudy-fill');
+  });
+
+  it('returns correct icon for Facebook channel', () => {
+    const inbox = { channel_type: 'Channel::FacebookPage' };
+    const { value: icon } = useChannelIcon(inbox);
+    expect(icon).toBe('i-ri-messenger-fill');
+  });
+
+  it('returns correct icon for WhatsApp channel', () => {
+    const inbox = { channel_type: 'Channel::Whatsapp' };
+    const { value: icon } = useChannelIcon(inbox);
+    expect(icon).toBe('i-ri-whatsapp-fill');
+  });
+
+  describe('Email channel', () => {
+    it('returns mail icon for generic email channel', () => {
+      const inbox = { channel_type: 'Channel::Email' };
+      const { value: icon } = useChannelIcon(inbox);
+      expect(icon).toBe('i-ri-mail-fill');
+    });
+
+    it('returns Microsoft icon for Microsoft email provider', () => {
+      const inbox = {
+        channel_type: 'Channel::Email',
+        provider: 'microsoft',
+      };
+      const { value: icon } = useChannelIcon(inbox);
+      expect(icon).toBe('i-ri-microsoft-fill');
+    });
+
+    it('returns Google icon for Google email provider', () => {
+      const inbox = {
+        channel_type: 'Channel::Email',
+        provider: 'google',
+      };
+      const { value: icon } = useChannelIcon(inbox);
+      expect(icon).toBe('i-ri-google-fill');
+    });
+  });
+
+  it('returns default icon for unknown channel type', () => {
+    const inbox = { channel_type: 'Channel::Unknown' };
+    const { value: icon } = useChannelIcon(inbox);
+    expect(icon).toBe('i-ri-global-fill');
+  });
+
+  it('returns default icon when channel type is undefined', () => {
+    const inbox = {};
+    const { value: icon } = useChannelIcon(inbox);
+    expect(icon).toBe('i-ri-global-fill');
+  });
+});