General Minor Enhancements Part 3

Continuing from #65

- [ ] in the doPost() function, add better feedback when something is 'loading' (like a global loading symbol or loading bar which runs across the screen)
- [ ] Manually added mod option downloads are always added *after* the normal options. Therefore their priority levels can't be in-between the existing downloads, only can come after them. Not sure if this is the desired behavior, or if there is even a case where you would want this. But the behavior is confusing at the moment as in the JSON it's called "priority' for both priorities, even though they are different priorities.
- [ ] Add option to download only (stop after downloads complete)
- [ ] Add "open downloads folder" / "open installer folder" button
- [ ] Add free disk space check (Not implemented on mac, but otherwise DONE)
- [ ] Fix duplicate mod size (probably remove top mod size warning)
- [ ] On chrome, index page images look blurry due to chrome's resize algorithm (as compared to firefox). Consider pre-resizing the images to their native res or displaying them at their native res
- [ ] **Automatically saved output log at end of install includes `output.txt` which may be misleading as this is probably a leftover from the previous install, rather than from when the user ran the game**

Examine la función doPost() para cargar comentarios, la lógica de prioridad de descarga de mods y los componentes de la interfaz de usuario para nuevos botones como 'abrir carpeta de descargas'. Verifique cómo se calculan y muestran los tamaños de los mods, e inspeccione la representación de imágenes en la página de inicio. Es necesario examinar el mecanismo de guardado del registro de salida para evitar incluir archivos residuales.

Escrito por el modelo de indexación a partir del texto del issue.