Increase size allocated for institutional logo

[SteelWagstaff]

Currently supported logo size for webbook/network is 40 [height] x 265 [width]:

pressbooks-aldine/inc/actions/namespace.php

Lines 84 to 91 in 144da94

	add_theme_support(
	'custom-logo', [
	'height' => 40,
	'width' => 265,
	'flex-width' => true,
	'flex-height' => true,
	]
	);

The logo is displayed on with a max-height of 30px. Styling rules for these logos are defined in Aetna: https://github.com/pressbooks/aetna/blob/2ba47678d0b40666e53104c9824e07d250533cc4/assets/styles/layouts/_header.scss#L20-L38

Many institutions would like this to be larger (height wise, especially) and less banner-like (ratio of less than 6.5:1, for example).

[jocelynpb2]

There has been interest in this issue here https://pressbooks.zendesk.com/agent/tickets/13038

[MichSpieler]

Another ticket where this has come up: https://pressbooks.zendesk.com/agent/tickets/20066

[SteelWagstaff]

We did some experimentation and testing. Max-height of 50px seems like the optimal improvement. We could also add an input/option to the customizer that allows the network manager to choose their desired logo height when uploading the logo, and to use 50px as default max-height fallback value.