Change to capital letter

Signed-off-by: Valdnet <47037905+Valdnet@users.noreply.github.com>

app/src/main/res/values/strings.xml

@@ -780,7 +780,7 @@ How to translate with transifex:
     <string name="add_to_notes">Add to Notes</string>
     <string name="nc_edited_by_admin">Edited by admin</string>
     <string name="nc_edited_by">"Edited by "</string>
-    <string name="nc_clear_edit_button">clear Edit Button</string>
+    <string name="nc_clear_edit_button">Clear Edit Button</string>
     <string name="nc_edit_icon">Edit Icon</string>
     <string name="get_invitations_error">Failed to fetch pending invitations</string>
 </resources>