Added further security to the API endpoints

• We ran certain security scans and made our API endpoints lot more secure

Bug fixes

• Synchronization interoperability between “Caption” and “Classification” values in the Annotations panel and text lines pop-up window
• Disappearance of the annotations' opacity settings
• Synchronization of “Outline Color Opacity” for existing and new annotations
• Synchronization between the “Show/Hide Annotations” in the Annotation panel and the “Annotations” toggle button in the Viewport drop-down menu
• The viewport drop-down menu buttons are not working correctly
• Change slide path to slide name
• Pop out selected slide doesn't function correctly
• Add overlay grid to PIMSls

Improvements to existing features

• Added user account information to the upper right corner along with email address and moved PIMS LS brand title to the top left
• Also moved slide loading messages and indicator to the top center of the screen, instead of top right