Inconsistencies between dialog messages

> [!NOTE]
> I'm rewriting the issue description. Feel free to work on one of the sub-issues below.



Questions

- [X] Decide which numeric dialogs should be changed to input steppers (like in #20005).
- [ ] What should happen to the background color of the title of some dialogs like the deck picker and the tags dialogs?

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Done

# Settings

- [x] Minutes between automatic backups:
- [x] Change to input stepper (#20005).
- [x] Daily backups to keep:
- [x] Same as above.
- [x] Weekly backups to keep:
- [x] Same as above.
- [x] Monthly backups to keep:
- [x] Same as above.
- [x] Network timeout:
- [x] Same as above.
- [x] Language:
- [x] Update background color.
- [x] Error reporting mode:
- [x] Update background color.
- [x] Deck for new cards:
- [x] Update background color.
- [x] Frame style:
- [x] Update background color.
- [x] Hide system bars:
- [x] Update background color.
- [x] Toolbar position:
- [x] Update background color.
- [x] Fetch media on sync
- [x] Update background color.
- [x] Theme:
- [x] Update background color.
- [x] Day theme:
- [x] Update background color.
- [x] Night theme:
- [x] Update background color.

# Decks

- [x] Rename deck:
- [x] If you try to change the casing (upper vs lower), it will show the "Deck already exists" warning.

# Browser

- [x] Reposition new cards:
- [x] Text at the top says "Queue top:" twice, which doesn't make sense.
- [x] Add tag:
- [x] Show red text if the tag already exists and disable the button. https://github.com/ankidroid/Anki-Android/pull/20368
- [x] Set due date:
- [x] Limit the number.

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Temporary list

## The custom study dialogs

**I suggest we remove the first two dialogs:**

- These are just a source of confusion.
- There is a much better way to change the limits for today in the deck options.
- They don't fit the other dialogs which all create filtered decks.

### Increase today's new card limit:

- [ ] Consider adding a title "Increase today's new card limit".
- [ ] Consider replacing the helper text with a toggle/checkbox to switch between increase/decrease. The OK button should change to "Increase"/"Decrease" to match the state of the toggle.

### Increase today's review card limit:

- [ ] Same as above but with "review" instead of "new".

### Preview new cards:

**I suggest we remove this option and dialog because:**

- There is already a preview feature in the card browser.
- The filtered deck created has the reschedule option off, which we should discourage as it's bad for the algorithm.

- [ ] Add a title "Preview new cards".
- [ ] Replace the description with "Preview new cards added in the last:".
- [ ] Add a unit "day"/"days" to the box.
- [ ] Replace "OK"/"Select" with "Create".
- [ ] If the resulting filtered deck is empty (i.e., no cards match the criteria), a red warning should appear and the button should be disabled, instead of an error dialog (see reference).
- [ ] Show a warning when the input is invalid, limit the digits, and prevent leading zeros, like in https://github.com/ankidroid/Anki-Android/pull/20520, except without input steppers.

## Reference dialogs


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Waiting...

# Reminders 1

- [ ] Edit review reminder:
- [ ] Replace "OK" with a more useful string.
- [ ] Border text: "Card threshold".
- [ ] Remove "Card threshold:" from the description and place the description above the entry box, making it wider.
- [ ] Remove background color from the title.
- [ ] Add "card"/"cards" unit in the box.
- [ ] Add review reminder:
- [ ] Same as above.
- [ ] Select time:
- [ ] Replace "OK" with a more useful string.
- [ ] Change the "Select time" to a title.
- [ ] In text mode: move the "Hour" and "Minute" into the borders.
- [ ] Delete this reminder?:
- [ ] Replace "OK" with a more useful string.
- [ ] Change the title to "Delete reminder".
- [ ] Change the text to "This action cannot be undone. Are you sure?".

# Reminders 2

- [ ] Edit review reminder:
- [ ] Limit the number of digits.
- [ ] Remove the red text "Please enter a whole number of cards".
- [ ] If the box is empty, the button should be disabled, instead of showing the toast "Something went wrong, please try again".
- [ ] Add review reminder:
- [ ] Same as above.

# Managing fields

- [ ] Add field:
- [ ] Show red text if field already exists and disable the button.
- [ ] Rename field:
- [ ] Same as above.

# Managing fields

- [ ] Add field:
- [ ] Replace "OK" with a more useful string.
- [ ] Add a border to the box and with "Name" in it.
- [ ] Rename field:
- [ ] Add a border to the box and with "Name" in it.

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- [ ] Delete field:
- [ ] Replace "OK" with a more useful string.
- [ ] Reposition field:
- [ ] Same as above.
- [ ] Add a title "Reposition field".
- [ ] Move "New position" into the border of the box. The range, e.g. "(1 ...2)" should be below the box in gray, similar to the "Set due date" dialog.