[gnome-weather] window: Mark missing string for translation

[Piotr Drąg <piotrdrag src gnome org>]

commit 9742e8125b429de0197c2f4637c3b4aa703d4ea9
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sun Feb 28 13:51:49 2021 +0100

    window: Mark missing string for translation

 data/window.ui | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/data/window.ui b/data/window.ui
index 9c71ab1..b16a804 100644
--- a/data/window.ui
+++ b/data/window.ui
@@ -133,7 +133,7 @@
                     <property name="hexpand">False</property>
                     <property name="halign">center</property>
                     <property name="width-request">246</property>
-                    <property name="placeholder_text">Search for a city or country</property>
+                    <property name="placeholder_text" translatable="yes">Search for a city or 
country</property>
                   </object>
                 </child>
                 <style>