Complementary renaming in theme.qrc

Signed-off-by: Dominique Fuchs <32204802+DominiqueFuchs@users.noreply.github.com>

theme.qrc

@@ -1,14 +1,14 @@
 <RCC>
     <qresource prefix="/client">
-        <file alias="theme/colored/nextcloud-icon-16.png">theme/colored/16-nextcloud-icon.png</file>
-        <file alias="theme/colored/nextcloud-icon-24.png">theme/colored/24-nextcloud-icon.png</file>
-        <file alias="theme/colored/nextcloud-icon-32.png">theme/colored/32-nextcloud-icon.png</file>
-        <file alias="theme/colored/nextcloud-icon-48.png">theme/colored/48-nextcloud-icon.png</file>
-        <file alias="theme/colored/nextcloud-icon-64.png">theme/colored/64-nextcloud-icon.png</file>
-        <file alias="theme/colored/nextcloud-icon-128.png">theme/colored/128-nextcloud-icon.png</file>
-        <file alias="theme/colored/nextcloud-icon-256.png">theme/colored/256-nextcloud-icon.png</file>
-        <file alias="theme/colored/nextcloud-icon-512.png">theme/colored/512-nextcloud-icon.png</file>
-        <file alias="theme/colored/nextcloud-icon-1024.png">theme/colored/1024-nextcloud-icon.png</file>
+        <file alias="theme/colored/Nextcloud-icon-16.png">theme/colored/16-Nextcloud-icon.png</file>
+        <file alias="theme/colored/Nextcloud-icon-24.png">theme/colored/24-Nextcloud-icon.png</file>
+        <file alias="theme/colored/Nextcloud-icon-32.png">theme/colored/32-Nextcloud-icon.png</file>
+        <file alias="theme/colored/Nextcloud-icon-48.png">theme/colored/48-Nextcloud-icon.png</file>
+        <file alias="theme/colored/Nextcloud-icon-64.png">theme/colored/64-Nextcloud-icon.png</file>
+        <file alias="theme/colored/Nextcloud-icon-128.png">theme/colored/128-Nextcloud-icon.png</file>
+        <file alias="theme/colored/Nextcloud-icon-256.png">theme/colored/256-Nextcloud-icon.png</file>
+        <file alias="theme/colored/Nextcloud-icon-512.png">theme/colored/512-Nextcloud-icon.png</file>
+        <file alias="theme/colored/Nextcloud-icon-1024.png">theme/colored/1024-Nextcloud-icon.png</file>
         <file>theme/colored/state-error-32.png</file>
         <file>theme/colored/state-error-64.png</file>
         <file>theme/colored/state-error-128.png</file>