Merge #33193: Release: Prepare "Translation string freeze" step

0df2c3c qt: Update `src/qt/locale/bitcoin_en.xlf` translation source file (Hennadii Stepanov)

Pull request description:

  This PR follows our [Release Process](https://github.com/bitcoin/bitcoin/blob/53a996f122663e271efa52c45b173613b8ac635e/doc/release-process.md).

  It is required for the translation string freeze, as the following PRs introduced new translatable strings:
   - #31296:https://github.com/bitcoin/bitcoin/blob/7b4a1350dfd6b3892a9c314eeff28b22ef0c1a73/src/wallet/wallet.h#L945

  - #31453:https://github.com/bitcoin/bitcoin/blob/7b4a1350dfd6b3892a9c314eeff28b22ef0c1a73/src/init.cpp#L1878-L1879

  - #32896:https://github.com/bitcoin/bitcoin/blob/22e689587a7ae02f82ad2464017731f3b23b5363/src/wallet/spend.cpp#L288-L292

  **Notes for reviewers:**

  1. To reproduce the diff, run:
  ```
  cmake --preset dev-mode
  cmake --build build_dev_mode --target translate
  ```

  2. The structure of `bitconstrings.cpp` has been altered due to #33209.

  3. The diff in `bitcoin_en.xlf` contains many unrelated metadata changes, so it may be easier to verify the changes in `bitcoin_en.ts`.

ACKs for top commit:
  janb84:
    re ACK 0df2c3c

Tree-SHA512: be87c096ef99ce7148d046f30427bc1480cb72b080eb8537a4eda3dfe4e856eeaa50cf6efb9a1c6af3d15e1123ec87a07101c539c066a8d4dd6afb817cd95137

Author: fanquake