Improve Steam ID Regex detection

[blankdvth]

Since the regex was changed recently to allow for URLs, Steam IDs embedded in various lines have trouble being detected. This is likely a result of special characters that are part of those lines which result in the regex not matching, it should be loosened to allow for these special characters. For example, the line copied from status:
# 123 12 "Player Name" STEAM_1:1:123456789 00:00 0 0 active 123456
would not match.