acd98adaf1 qt: Avoid potential -Wdeprecated-enum-enum-conversion warning (Hennadii Stepanov)
d8641f04e4 qt: Use human-readable strings in preference to hard-coded integers (Hennadii Stepanov)
Pull request description:
This PR is related to bitcoin/bitcoin#24169. It adjusts code in order to avoid `-Wdeprecated-enum-enum-conversion` warnings instead of disabling them.
Could be tested with gcc 11.2.
ACKs for top commit:
MarcoFalke:
Approach ACK acd98adaf1
fanquake:
untested ACK acd98adaf1 - thanks.
promag:
Code review ACK acd98adaf1.
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