- Bumped to version 3.1.0

- Enables Apple M1 Rosetta support
- Fixes Apple Intel and M1 packaging issue(s)
- Update build docs
- Disable donation begging
- Mining: New background gfx for the QML widget
- Mining: fix segfault at wownerod right-click download
- remove (old) OpenPGP code (find a new impl. when needed)

src/utils/utils.cpp

@@ -439,6 +439,18 @@ int Utils::maxLength(const QVector<QString> &array) {
     return maxLength;
 }
 
+unsigned int Utils::countAlphaNum(const QByteArray &line) {
+    QRegularExpression re("([a-zA-Z0-9])");
+    QRegularExpressionMatchIterator iterator = re.globalMatch(line);
+
+    int count = 0;
+    while (iterator.hasNext()){
+        QRegularExpressionMatch match = iterator.next();
+        count += 1;
+    }
+    return count;
+}
+
 bool Utils::versionOutdated(const QString &current_version, const QString &newest_version) {
     // True when major or minor version changed
     auto cver = current_version.split('.');