Bug fixes
- storage permission still needed on android <= 10 (a29dcb6)
- export images in batch to prevent memory issue (3a05f70)
- fixed snack text and file opening while exporting PDF (9841d22)
- camera permission also needed when using system camera app (855ba9f)
- better document detection (0d81f8c)
- prevent crash on dark mode change (f98559f)
- prevent adding document with no page (fec578f)