Pull request #143: Added mosreg.ru to exceptions

Merge in EXTENSIONS/popup-blocker from fix-mosreg to master

Squashed commit of the following:

commit 1ef9f16f886b6609886fe6146d65135c60507aba
Author: Andrey Meshkov <am@adguard.com>
Date:   Sun Dec 3 21:29:41 2023 +0300

    Added mosreg.ru to exceptions

exclusions.ts

@@ -294,6 +294,8 @@ export const exclusions = [
     '*://*.dobreprogramy.pl/*',
     '*://polygamia.pl/*',
     '*://*.polygamia.pl/*',
+    // False positives on myschool.mosreg.ru
+    '*://*.mosreg.ru/*',
     // https://github.com/AdguardTeam/PopupBlocker/issues/191
     '*://vietjetair.com/*',
     '*://*.vietjetair.com/*',