qt: Add missing mnemonics in menu bar options
qt: Add missing mnemonics in menu bar options

The Window -> Minimize an File -> Load PSBT from clipboard options were missing a mnemonic
shortcut. This PR adds mnemonic shortcuts for them.

mruddy/bitcoin,namecoin/namecoin-core,GroestlCoin/GroestlCoin,GroestlCoin/bitcoin,domob1812/namecore,bitcoinsSG/bitcoin,namecoin/namecore,mm-s/bitcoin,namecoin/namecore,anditto/bitcoin,jamesob/bitcoin,sstone/bitcoin,Xekyo/bitcoin,jambolo/bitcoin,fujicoin/fujicoin,instagibbs/bitcoin,MarcoFalke/bitcoin,jambolo/bitcoin,Xekyo/bitcoin,pataquets/namecoin-core,bitcoinsSG/bitcoin,Xekyo/bitcoin,domob1812/namecore,bitcoinknots/bitcoin,fanquake/bitcoin,andreaskern/bitcoin,andreaskern/bitcoin,jlopp/statoshi,domob1812/bitcoin,GroestlCoin/GroestlCoin,fanquake/bitcoin,sipsorcery/bitcoin,Xekyo/bitcoin,jlopp/statoshi,prusnak/bitcoin,anditto/bitcoin,fujicoin/fujicoin,anditto/bitcoin,ajtowns/bitcoin,anditto/bitcoin,sipsorcery/bitcoin,fujicoin/fujicoin,domob1812/bitcoin,anditto/bitcoin,achow101/bitcoin,jlopp/statoshi,jambolo/bitcoin,pataquets/namecoin-core,mruddy/bitcoin,sstone/bitcoin,GroestlCoin/bitcoin,GroestlCoin/bitcoin,jamesob/bitcoin,particl/particl-core,namecoin/namecoin-core,pataquets/namecoin-core,AkioNak/bitcoin,sipsorcery/bitcoin,MarcoFalke/bitcoin,ajtowns/bitcoin,dscotese/bitcoin,prusnak/bitcoin,mruddy/bitcoin,pataquets/namecoin-core,GroestlCoin/GroestlCoin,bitcoinsSG/bitcoin,mm-s/bitcoin,domob1812/bitcoin,dscotese/bitcoin,prusnak/bitcoin,bitcoin/bitcoin,fanquake/bitcoin,jamesob/bitcoin,bitcoinknots/bitcoin,bitcoin/bitcoin,particl/particl-core,domob1812/bitcoin,AkioNak/bitcoin,bitcoinknots/bitcoin,jambolo/bitcoin,AkioNak/bitcoin,AkioNak/bitcoin,domob1812/namecore,bitcoinknots/bitcoin,achow101/bitcoin,mruddy/bitcoin,yenliangl/bitcoin,achow101/bitcoin,mm-s/bitcoin,lateminer/bitcoin,lateminer/bitcoin,yenliangl/bitcoin,dscotese/bitcoin,kallewoof/bitcoin,fujicoin/fujicoin,namecoin/namecore,bitcoinsSG/bitcoin,namecoin/namecoin-core,GroestlCoin/GroestlCoin,kallewoof/bitcoin,sipsorcery/bitcoin,prusnak/bitcoin,MarcoFalke/bitcoin,lateminer/bitcoin,ajtowns/bitcoin,namecoin/namecoin-core,yenliangl/bitcoin,Xekyo/bitcoin,GroestlCoin/bitcoin,fujicoin/fujicoin,MarcoFalke/bitcoin,fujicoin/fujicoin,bitcoin/bitcoin,fanquake/bitcoin,andreaskern/bitcoin,tecnovert/particl-core,jamesob/bitcoin,dscotese/bitcoin,kallewoof/bitcoin,andreaskern/bitcoin,instagibbs/bitcoin,ajtowns/bitcoin,MarcoFalke/bitcoin,particl/particl-core,lateminer/bitcoin,anditto/bitcoin,tecnovert/particl-core,andreaskern/bitcoin,domob1812/namecore,particl/particl-core,yenliangl/bitcoin,tecnovert/particl-core,instagibbs/bitcoin,mm-s/bitcoin,tecnovert/particl-core,AkioNak/bitcoin,yenliangl/bitcoin,andreaskern/bitcoin,mm-s/bitcoin,namecoin/namecoin-core,Xekyo/bitcoin,namecoin/namecore,bitcoin/bitcoin,GroestlCoin/bitcoin,jamesob/bitcoin,jambolo/bitcoin,sipsorcery/bitcoin,achow101/bitcoin,prusnak/bitcoin,jamesob/bitcoin,sipsorcery/bitcoin,dscotese/bitcoin,namecoin/namecore,namecoin/namecoin-core,sstone/bitcoin,sstone/bitcoin,pataquets/namecoin-core,bitcoinsSG/bitcoin,mruddy/bitcoin,prusnak/bitcoin,MarcoFalke/bitcoin,achow101/bitcoin,bitcoin/bitcoin,ajtowns/bitcoin,domob1812/namecore,ajtowns/bitcoin,lateminer/bitcoin,domob1812/namecore,GroestlCoin/bitcoin,lateminer/bitcoin,pataquets/namecoin-core,GroestlCoin/GroestlCoin,achow101/bitcoin,AkioNak/bitcoin,GroestlCoin/GroestlCoin,fanquake/bitcoin,mruddy/bitcoin,sstone/bitcoin,namecoin/namecore,kallewoof/bitcoin,bitcoinsSG/bitcoin,kallewoof/bitcoin,jlopp/statoshi,fanquake/bitcoin,particl/particl-core,jlopp/statoshi,jambolo/bitcoin,sstone/bitcoin,instagibbs/bitcoin,kallewoof/bitcoin,jlopp/statoshi,bitcoin/bitcoin,bitcoinknots/bitcoin,yenliangl/bitcoin,dscotese/bitcoin,tecnovert/particl-core,instagibbs/bitcoin,domob1812/bitcoin,tecnovert/particl-core,domob1812/bitcoin,mm-s/bitcoin,instagibbs/bitcoin,particl/particl-core