Fix bio length when nil in user#edit
Fix bio length when nil in user#edit

differentreality/osem,ChrisBr/osem,rishabhptr/osem,namangupta01/osem,AndrewKvalheim/osem,openSUSE/osem,Shriyanshagro/osem,kormoc/osem,kormoc/osem,openSUSE/osem,namangupta01/osem,rishabhptr/osem,ChrisBr/osem,differentreality/osem,SeaGL/osem,AndrewKvalheim/osem,Shriyanshagro/osem,kormoc/osem,hennevogel/osem,openSUSE/osem,BelieveC/osem,hennevogel/osem,Shriyanshagro/osem,BelieveC/osem,ChrisBr/osem,kormoc/osem,hennevogel/osem,SeaGL/osem,bear454/osem,BelieveC/osem,bear454/osem,bear454/osem,differentreality/osem,rishabhptr/osem,differentreality/osem,Shriyanshagro/osem,namangupta01/osem,SeaGL/osem,hennevogel/osem,AndrewKvalheim/osem,BelieveC/osem,namangupta01/osem,bear454/osem,rishabhptr/osem,ChrisBr/osem