MXTools: Use same regex for homeserver domain as element-android
MXTools: Use same regex for homeserver domain as element-android

https://github.com/vector-im/element-android/blob/v1.1.6/matrix-sdk-android/src/main/java/org/matrix/android/sdk/api/MatrixPatterns.kt#L25
matrix-org/matrix-ios-sdk,matrix-org/matrix-ios-sdk,matrix-org/matrix-ios-sdk,matrix-org/matrix-ios-sdk,matrix-org/matrix-ios-sdk