Added translation using Weblate (Czech)

translations/cs_CZ.ts

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="cs">
+<context>
+    <name>ScreenshotView</name>
+    <message>
+        <location filename="../src/screenshotview.cpp" line="96"/>
+        <source>The picture has been saved to %1</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../src/screenshotview.cpp" line="127"/>
+        <source>The picture has been saved to the clipboard</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
+</TS>