main/postmarketos-ui-{gnome,phosh}: less revealing epiphany user-agent (MR 1402)

Make it less trivial to fingerprint users of the epiphany browser on
postmarketOS, by replacing the postmarketOS specific user-agent with an
user-agent from a current pixel device.

Old:
	Mozilla/5.0 (postmarketOS device, like iPhone; X11; Linux x86_64) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15 Epiphany/605.1.15

New:
	Mozilla/5.0 (Linux; Android 10; Pixel) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.96 Mobile Safari/537.36

Taken from the following page. Note that this seems to be one of the few
cases, where not a full android build ID is included. Which makes it a
bit harder to fingerprint. Not as good as the tor browser one, but with
that one we'd have to pretend that a webkit browser is firefox.

https://developers.whatismybrowser.com/useragents/explore/operating_platform/pixel/2

Related: https://blog.torproject.org/browser-fingerprinting-introduction-and-challenges-ahead
Related: https://developer.chrome.com/multidevice/user-agent
Related: https://webaim.org/blog/user-agent-string-history/

main/postmarketos-ui-gnome/000-gschema.override

@@ -10,7 +10,7 @@ search-engines=[('Search the Web', 'https://duckduckgo.com/?q=%s&t=epiphany', ''
 
 [org.gnome.Epiphany.web]
 mobile-user-agent=true
-user-agent='Mozilla/5.0 (postmarketOS device, like iPhone; X11; Linux x86_64) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15 Epiphany/605.1.15'
+user-agent='Mozilla/5.0 (Linux; Android 10; Pixel) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.96 Mobile Safari/537.36'
 
 [org.gnome.settings-daemon.plugins.power]
 sleep-inactive-ac-type='nothing'

main/postmarketos-ui-gnome/APKBUILD

 # Maintainer: Martijn Braam <martijn@brixit.nl>
 pkgname=postmarketos-ui-gnome
 pkgver=1
-pkgrel=2
+pkgrel=3
 pkgdesc="(Wayland) Gnome Shell"
 url="https://gnome.org/"
 # armhf: gdm missing
@@ -24,4 +24,4 @@ package() {
 	install -Dm644 "$srcdir"/000-gschema.override \
 		"$pkgdir"/usr/share/glib-2.0/schemas/000-postmarketos.gschema.override
 }
-sha512sums="fa1e3b91b0c94f623fcc5ad28a738e1d2f35a9144c2c975c8234d993119e7f33f270e248ff87131ad626e2e5f4f41fab0b595617966c62d7c646e81ab9e11a17  000-gschema.override"
+sha512sums="fbbcbd94b6d10320b4d470a535f92fff0b096407ff20f340d1f56645aa5c0c204473b9e65de0ce772cd18ce9cfeebf588fd1679baff952197d7c66ff72d39f93  000-gschema.override"

main/postmarketos-ui-phosh/000-gschema.override

@@ -13,7 +13,8 @@ search-engines=[('Search the Web', 'https://duckduckgo.com/?q=%s&t=epiphany', ''
 
 [org.gnome.Epiphany.web]
 mobile-user-agent=true
-user-agent='Mozilla/5.0 (postmarketOS device, like iPhone; X11; Linux x86_64) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15 Epiphany/605.1.15'
+user-agent='Mozilla/5.0 (Linux; Android 10; Pixel) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.96 Mobile Safari/537.36'
+
 
 [org.gnome.settings-daemon.plugins.power]
 sleep-inactive-ac-type='nothing'

main/postmarketos-ui-phosh/APKBUILD

 # Maintainer: Bart Ribbers <bribbers@disroot.org>
 pkgname=postmarketos-ui-phosh
 pkgver=2
-pkgrel=1
+pkgrel=2
 pkgdesc="(Wayland) Mobile UI developed for the Librem 5 (works only with numeric passwords!)"
 url="https://puri.sm"
 arch="noarch !armhf"
@@ -60,7 +60,7 @@ qt_tweaks() {
 }
 
 sha512sums="c51a5cf93495069d71900dd1c6fbddfa3bdfb70dbab8141d1b115b6150975a12206c63517f18dc516e0366028b32e014b6d37a20e19ff73d5f0934c518d3ab39  60-lightdm-autologin.conf
-2bc94b0c457a85cadac88e48685b95e9c9a6f8d9e611a7aaf3c4dcd5c0fc846f1e6eb31f21a7e28e35507333e4c1f14d87845f042f86f00418aaec3a90d343d0  000-gschema.override
+10075ef585527e2b2a47a9aba02c8089fabb099992c4cd7d634f614d3e40e9ee918803277d5534d44e7e838d6a8fa2bae43ed146c693c2ff9a1b5619f6d8c2da  000-gschema.override
 4113ef59267e88d205ef1e1aec0ed11ccf817a25c232f2006a538b56fb466fad5025ad445d109e367ca92ee98d9b25f1f9a1a4b9bae2cb80df12a3739d62d10a  osk.sh
 57793bb079c76ba3bdcfca7880aa887de11fe80e7a05557b78435e57feabab70fbaeedc42da3aec6f914c35bba8e8ee9918367516eb45ee247f63f694624f179  gtk-app-wayland.sh
 6e193eca3961a78d47b4656892eae34d019d9317a255a201f5ea61e3300caff04c526a27cd98d0edc072b36e3eaf3a1768f4cd27c5e2be8b19c167d535c820a6  qt-tweaks.sh