fix: SVG icons for wifi password dialog and per-app volume

- Replace network-wireless-symbolic with wifi/network-wireless-100.svg
- Replace back button icon with misc/chevron-left.svg

src/shared/dialogs/wifi_password_dialog.py

@@ -6,6 +6,8 @@ from fabric.widgets.image import Image
 from fabric.widgets.label import Label
 from fabric.widgets.window import Window
 
+from utils.gtk_utils import svg_file
+
 
 class WiFiPasswordDialog(Window):
     def __init__(
@@ -39,8 +41,8 @@ class WiFiPasswordDialog(Window):
         self.connect("notify::visible", self._on_visibility_changed)
 
     def _create_dialog_content(self):
-        self.wifi_icon = Image(
-            icon_name="network-wireless-symbolic", size=20, name="wifi-dialog-icon"
+        self.wifi_icon = svg_file(
+            "wifi/network-wireless-100.svg", size=20, name="wifi-dialog-icon"
         )
 
         self.title_label = Label(

src/window/controlcenter/per_app_volume.py

@@ -9,6 +9,7 @@ from fabric.widgets.separator import Separator
 from shared.widgets.flat_scale import FlatScale
 
 # Local imports
+from utils.gtk_utils import svg_file
 from utils.roam import audio_service
 
 # Mappings used to resolve an app's icon/display name from its description or
@@ -73,7 +74,7 @@ class PerAppVolumeControl(Box):
             style_classes="menu-header",
             children=[
                 Button(
-                    image=Image(icon_name="back", size=10),
+                    image=svg_file("misc/chevron-left.svg", size=10),
                     on_clicked=lambda *_: self.control_center.close_per_app_volume(),
                 ),
                 Label("App Volume", name="app-volume-header"),