Adding right click listener for URLs and Text Selections (#3197)

* Adds right-click listener

For urls and text selections

* Fixes build-release on windows

Should still be bash compatible too

* Update context menu line

Responding to feedback from @JaredPotter

preload.js

@@ -283,6 +283,20 @@ window.Signal.Backup = require('./js/modules/backup');
 window.Signal.Debug = require('./js/modules/debug');
 window.Signal.Logs = require('./js/modules/logs');
 
+// Add right-click listener for selected text and urls
+const contextMenu = require('electron-context-menu');
+
+contextMenu({
+  showInspectElement: false,
+  shouldShowMenu: (event, params) => {
+    if(!params.isEditable && params.mediaType === 'none' && ( params.linkURL.length !== 0 || params.selectionText.length !== 0 )) {
+      return params.linkURL || params.selectionText;
+    }
+
+    return false;
+  },
+});
+
 // We pull this in last, because the native module involved appears to be sensitive to
 //   /tmp mounted as noexec on Linux.
 require('./js/spell_check');