feat: design applications and first api calls

Co-authored-by: Walid <87608619+WalidKorchi@users.noreply.github.com>

contexts/Channels.tsx

@@ -0,0 +1,15 @@
+export interface ChannelType {
+  id: number
+  name: string
+  description: string
+  createdAt: string
+  updatedAt: string
+}
+
+export const channelExample: ChannelType = {
+  id: 4,
+  name: 'Channel 4',
+  description: '',
+  createdAt: '',
+  updatedAt: ''
+}