Rename "All Files" to "All file types" release QM

Translations didn't work because I didn't "release" within Linguist.  I
wonder how to update the *.ts files with missing strings...
(cherry picked from commit 49c2f6bad1)

data/locale/de.ts

@@ -6016,6 +6016,11 @@ Latenz: %2 ms</translation>
         <source>FL Studio projects</source>
         <translation>FL Studio Projekte</translation>
     </message>
+    <message>
+        <location filename="../../src/core/song.cpp" line="1073"/>
+        <source>All file types</source>
+        <translation>Alle Dateitypen</translation>
+    </message>
 </context>
 <context>
     <name>songEditor</name>

src/core/song.cpp

@@ -1076,7 +1076,7 @@ void song::importProject()
 			tr("FL Studio projects") +
 			" (*.flp"
 			 	");;" +
-			tr("All Files") +
+			tr("All file types") +
 			" (*.*)");
 
 	ofd.setFileMode( QFileDialog::ExistingFiles );