add description for allowed attachments to keep consistent (#2032)
add description for allowed attachments to keep consistent (#2032)

* add description for allowed attachments to keep consistent

* another one, previous one was bit long/wordy

* keep message sidebar consistent

* keep options > users > profile settings consistent

* keep attachments label text consistent throughout products

* some last minute adjustments, corrections, typo fixes, etc.

Cyperghost/WCF,MenesesEvandro/WCF,Cyperghost/WCF,SoftCreatR/WCF,0xLeon/WCF,WoltLab/WCF,0xLeon/WCF,Morik/WCF,Morik/WCF,MenesesEvandro/WCF,Morik/WCF,Cyperghost/WCF,Cyperghost/WCF,Cyperghost/WCF,SoftCreatR/WCF,SoftCreatR/WCF,joshuaruesweg/WCF,WoltLab/WCF,Morik/WCF,WoltLab/WCF,WoltLab/WCF,SoftCreatR/WCF,joshuaruesweg/WCF,joshuaruesweg/WCF,0xLeon/WCF