[cXF] Add What's New beside Alerts tab 1.7.3

• changed template modification code for better compatibility if using it beside the Search tab and with [cXF] Light and dark mode switch add-on

• compatibility fix to work with [cXF] Top Navigation

• fix: when using Alerts option, for guests the icon will show next to register button
• same fix has been added when using this add-on in combination with [cXF] Top Navigation add-on

• new option: change the FA icon

*note: check and edit settings in style properties after updating from the previous versions

• bugfix for What's new tab beside Search tab and search is disabled for certain groups

• compatibility fix for [XenConcept] Linked Accounts add-on

• compatibility fix for UI.X style: now it works with this style beside Alerts icon
• remove link title on hover when icon is beside Alerts tab

• option to show What's New icon on the far right corner on mobile

• NEW: option to set link button to point to What's New or New posts page

• option to set icon color