chg: Tuned the freetext import tool, fixes #2822
chg: Tuned the freetext import tool, fixes #2822

- refang e-mail addresses
- add [@] refanging

Rafiot/MISP,MISP/MISP,FIRSTdotorg/MISP,FloatingGhost/MISP,TheDr1ver/MISP,MISP/MISP,MISP/MISP,SteveClement/MISP,TheDr1ver/MISP,MISP/MISP,TheDr1ver/MISP,devnull-/MISP,FloatingGhost/MISP,TheDr1ver/MISP,Rafiot/MISP,SteveClement/MISP,devnull-/MISP,SteveClement/MISP,MISP/MISP,FIRSTdotorg/MISP,FloatingGhost/MISP,SteveClement/MISP,FIRSTdotorg/MISP,SteveClement/MISP,Rafiot/MISP,FloatingGhost/MISP,FIRSTdotorg/MISP,devnull-/MISP,Rafiot/MISP,devnull-/MISP