feat: Symmetric Multiprocessing, text editor improvements, merge doom libc, implement math functions

programs/src/desktop/apps/app_filemanager.cpp

@@ -1076,8 +1076,8 @@ static void filemanager_open_entry(FileManagerState* fm, int idx) {
         montauk::spawn("0:/apps/music/music.elf", fullpath);
     } else if (str_ends_with(fm->entry_names[idx], ".elf")) {
         montauk::spawn(fullpath);
-    } else if (fm->desktop) {
-        open_texteditor_with_file(fm->desktop, fullpath);
+    } else {
+        montauk::spawn("0:/apps/texteditor/texteditor.elf", fullpath);
     }
 }