Notification & Events Integrated Successfully

• Notification Functionality Implemented
• Events Functionality Implemented
• Courosel Functionality Implemented

What's Changed

• Imp Pages Added by @Siddhant-Patil0203 in #109
• login page bug fixed by @Siddhant-Patil0203 in #110
• added Notif Panel and images changed to button by @LadeHarshal in #112
• UI Events and notification integrated with backend by @Siddhant-Patil0203 in #117
• Backend Integration and Testing Done by @Siddhant-Patil0203 in #118

Full Changelog: v0.3.0...v0.4.0