two factor unlock - 80% battery charging - GOS Release 2024123000

grapheneos.org/releases#2024123000 add support for adding a PIN as a 2nd factor to fingerprint unlock to enable our new recommended high threat model configuration of a random diceware passphrase as the primary unlock method and fingerprint+PIN with a random 4-6 digit PIN as the regularly used secondary unlock method (the usual limitations of secondary unlock only being usable for 48 hours after successful primary unlock and our limit of 5 total secondary unlock attempts apply) add support for limiting charging the battery to 80% with support for bypass charging similar to the new Android 15 QPR1 stock Pixel OS feature, although unlike the stock Pixel OS our implementation still works while using a secondary user (the limit is currently hard-wired to 80% due to that being what’s fully supported for the stock OS usage, but we can eventually make it configurable) TWO AMAZING updates on this release!