Update background text images under recovery

Update the text images according to the new translations of
"b+sr+Latn", "be-rBY", and "bs-rBA". Also switch to pngquant
which gives a better compression rate.

Bug: 30415666
Change-Id: I6eae5dd7be4c7f1f93c50113822caac9868e0f95

parent a82ee456

res-hdpi/images/erasing_text.png

+34.5 KiB (54.6 KiB)

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res-hdpi/images/error_text.png

+27.2 KiB (38.6 KiB)

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res-hdpi/images/installing_security_text.png

0 → 100644

+119 KiB

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res-hdpi/images/installing_text.png

+69.4 KiB (109 KiB)

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res-hdpi/images/no_command_text.png

+42.1 KiB (66.5 KiB)

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