Add an alias for 'google-ima.js' redirect

[Alex-302]

AdGuard's - google-ima3
https://github.com/gorhill/uBlock/wiki/Resources-Library#google-imajs-

Error: "$redirect modifier is invalid" in the rule: "||imasdk.googleapis.com/js/sdkloader/ima3.js$script,important,redirect=google-ima.js,domain=a1.ro|antena3.ro|antenastars.ro|as.ro|jurnalul.ro|observator.tv|observatornews.ro|spynews.ro|zutv.ro"