No system keyboard when focusing on <input> text box in card view

[mobd]

Checked for duplicates?

• This issue is not a duplicate

Does it also happen in the desktop version?

• This bug does not occur in the latest version of Anki Desktop

What are the steps to reproduce this bug?

Add <input type="text" /> to a card.
Review a card and focus the input box. Try to type something. Note: when previewing the template it works as expected, only when reviewing a card does the keyboard not show up.

Expected behaviour

I should be able to type input into the input box in the card.

Debug info

AnkiDroid Version = 2.21alpha11 (b0d7b48431676f1ee721b4cae16065d50af0425a)
Backend Version = 0.1.49-anki25.01rc1 (25.01rc1 b65fa693dacbd92c0bdd2a8c3800d0827432d108)
Android Version = 15 (SDK 35)
ProductFlavor = full
Device Info = Xiaomi | Xiaomi | aurora | aurorapro | 24031PN0DC | qcom
Webview User Agent = Mozilla/5.0 (Linux; Android 15; 24031PN0DC Build/AQ3A.240627.003; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.121 Mobile Safari/537.36
ACRA UUID = 9b88fb3d-e6d1-4f1f-aa18-61e0befcc8fb
FSRS = 2.0.2 (Enabled: false)
Crash Reports Enabled = true

(Optional) Anything else you want to share?

Copied from #14546. The merged fix seems to be reverted, I don't know if there's a reason for it.

Research

• I have checked the manual and the FAQ and could not find a solution to my issue
• (Optional) I have confirmed the issue is not resolved in the latest alpha release (instructions)

[mobd]

The relevant commit is 44a1977 I think.