Split tx dialog buttons

The "actions" (sign, broadcast, send to cosigner, verify GA instant)
go on the RHS next to the "Cancel" button.

Copy, QR code and save go on the left.

gui/qt/transaction_dialog.py

@@ -97,10 +97,15 @@ class TxDialog(QWidget):
 
         self.copy_button = CopyButton(lambda: str(self.tx), self.parent.app)
 
-        self.buttons = [self.copy_button, self.qr_button, self.sign_button, self.broadcast_button, self.save_button, self.cancel_button]
+        # Action buttons
+        self.buttons = [self.sign_button, self.broadcast_button, self.cancel_button]
         run_hook('transaction_dialog', self)
 
-        vbox.addLayout(Buttons(*self.buttons))
+        hbox = QHBoxLayout()
+        hbox.addLayout(Buttons(self.copy_button, self.qr_button, self.save_button))
+        hbox.addStretch(1)
+        hbox.addLayout(Buttons(*self.buttons))
+        vbox.addLayout(hbox)
         self.update()
 
     def do_broadcast(self):

plugins/cosigner_pool.py

@@ -115,7 +115,7 @@ class Plugin(BasePlugin):
     def transaction_dialog(self, d):
         self.send_button = b = QPushButton(_("Send to cosigner"))
         b.clicked.connect(lambda: self.do_send(d.tx))
-        d.buttons.insert(2, b)
+        d.buttons.insert(0, b)
         self.transaction_dialog_update(d)
 
     @hook

plugins/greenaddress_instant.py

@@ -36,7 +36,7 @@ class Plugin(BasePlugin):
 
     button_label = _("Verify GA instant")
 
-    @hook 
+    @hook
     def init_qt(self, gui):
         self.win = gui.main_window
 
@@ -45,7 +45,7 @@ class Plugin(BasePlugin):
         self.wallet = d.wallet
         self.verify_button = b = QPushButton(self.button_label)
         b.clicked.connect(lambda: self.do_verify(d.tx))
-        d.buttons.insert(1, b)
+        d.buttons.insert(0, b)
         self.transaction_dialog_update(d)
 
     def get_my_addr(self, tx):