Fixed an issue where attempts to write to addresses.txt will freeze program

[ESurge]

Fixed an issue where attempts to write to addresses.txt will freeze program if the file doesn't exist

In the process of fixing above bug, cleaned up the code a bit.

Tested if addresses.txt file...

• doesn't exist, it will create the file and write the found address properly
• exists but doesn't have the found address, it writes properly
• exists and has the found address, it'll skip the write process

Also added a notification ping on found address and successful write.

[mothball187]

thanks @ESurge !