Prevent Right Click on Portal pages (#2060)

* Create test.js

* Delete Specialized Areas/Fix scripts/test.js

* Create Prevent Right-Click On Portals.script.js

* Delete Client-Side Components/UI Scripts/Prevent Right-Click On Portals.script.js

* Create script.js

* Create README.md

* Update script.js

* Update README.md

Author: raghavs046

Client-Side Components/UI Scripts/Prevent right click on portals/README.md

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+**Steps to Activate**
+1. Open the portals you want to disable right-click in "sp_portal" table.
+2. Open the theme attached to the portal.
+3. In the theme under "JS Includes" relatd list, create new JS include and select the UI script you created.
+Go to your portal and try to roght click, it will prevent and show the alert message.
+
+**Use Case**
+1. Many high security organizations like banks do not want their images or links to be copied through "inspect" so right-click need to be disabled.
+2. Many organizations want their source code to be hidden so they prevent right-click.
+
+
+ **Note**
+  1. This UI script is applied through portal theme , so it will be specific to portals using that theme. It will not have instance wide affect.

Client-Side Components/UI Scripts/Prevent right click on portals/script.js

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+/*
+Prevent right-click on portal for portal pages.
+This will secure the site code, prevent users from saving images etc.
+Ideal for high security organisations.
+
+UI Type : Mobile/service portal.
+*/
+(function() { // self invoking function
+    document.addEventListener('contextmenu', function(event) {
+        event.preventDefault(); // Prevent right-click operation.
+        alert("Right-Click Prevented for Security Reasons."); // alert message shown on right click.
+    });
+})();