slovak translation update for upcomming version

mu/interface/dialogs.py

@@ -322,14 +322,14 @@ def setup(self, mode, device_list):
         widget_layout.addWidget(grp_instructions)
 
         # Device type, firmware path, flash button
-        device_selector_label = QLabel("Device:")
+        device_selector_label = QLabel(_("Device:"))
         self.device_selector = DeviceSelector(show_label=True, icon_first=True)
         self.device_selector.set_device_list(device_list)
-        device_type_label = QLabel("Choose device type:")
+        device_type_label = QLabel(_("Choose device type:"))
         self.device_type = QComboBox(self)
         self.device_type.addItem("ESP8266")
         self.device_type.addItem("ESP32")
-        firmware_label = QLabel("Firmware (.bin):")
+        firmware_label = QLabel(_("Firmware (.bin):"))
         self.txtFolder = QLineEdit()
         self.btnFolder = QPushButton(_("Browse"))
         self.btnExec = QPushButton(_("Erase && write firmware"))
@@ -371,9 +371,9 @@ def show_folder_dialog(self):
         # open dialog and set to foldername
         filename = QFileDialog.getOpenFileName(
             self,
-            "Select MicroPython firmware (.bin)",
+            _("Select MicroPython firmware (.bin)"),
             os.path.expanduser("."),
-            "Firmware (*.bin)",
+            _("Firmware (*.bin)"),
         )
         if filename:
             filename = filename[0].replace("/", os.sep)

mu/interface/editor.py

@@ -304,8 +304,8 @@ def set_zoom(self, size="m"):
         # Make the margin left of line numbers follow zoom level
         self.setMarginWidth(0, margins[size])
         # Make margins around debugger-marker follow zoom level
-        self.setMarginWidth(1, margins[size] * 0.25)
-        self.setMarginWidth(4, margins[size] * 0.1)
+        self.setMarginWidth(1, int(margins[size] * 0.25))
+        self.setMarginWidth(4, int(margins[size] * 0.1))
 
     @property
     def label(self):