UX improvement
1. Exporting options are in a context menu for easier access to mobile devices.
2. Added the submit button for submitting new content to the app.
3. Options will be available as per the user's privilege level.
4. Export options on desktop will be displayed as soon as a selection is made.
5. Added option to logout and clear local data.
6. Added icons to actions for better understanding.
UI improvements
1. Blur effect for popups and dialogs boxes( !Experimental chromium only).
2. Fixed issue with scroll arrows not disappearing on the desktop when the last element is reached.
3. Fixed issue with web fonts not rendering properly.
**Other minor UI/UX improvements and bug fixes.
