main/postmarketos-ui-plasma-mobile: preinstall angelfish or firefox

depending on arch

Angelfish is not available on armv7 nor riscv64 due to qt6-qtwebengine
getting disabled. However, it is still preferable to install a web
browser by default. Firefox however can still be used on those devices.
Add a new -web subpackage, which installs Firefox on armv7/riscv64, and
installs angelfish on others, so everyone gets to have a pre-installed
and working web browser.

Signed-off-by: Ferass El Hafidi <funderscore@postmarketos.org>
Part-of: <https://gitlab.postmarketos.org/postmarketOS/pmaports/-/merge_requests/8373>

main/postmarketos-ui-plasma-mobile/APKBUILD

@@ -2,7 +2,7 @@
 maintainer="Bart Ribbers <bribbers@disroot.org>"
 pkgname=postmarketos-ui-plasma-mobile
 pkgver=6
-pkgrel=8
+pkgrel=9
 pkgdesc="(Wayland) Mobile variant of KDE Plasma"
 url="https://wiki.postmarketos.org/wiki/Plasma_Mobile"
 # armhf blocked by pmaports#75
@@ -38,7 +38,9 @@ source="
 subpackages="$pkgname-extras $pkgname-openrc $pkgname-systemd"
 # armv7 and riscv64 do not have qtwebengine in alpine
 if [ "$CARCH" != "armv7" ] && [ "$CARCH" != "riscv64" ]; then
-	subpackages="$subpackages $pkgname-extras-web:extras_web"
+	subpackages="$subpackages $pkgname-extras-web:extras_web $pkgname-web:angelfish"
+else
+	subpackages="$subpackages $pkgname-web:firefox"
 fi
 install="
 	$pkgname-openrc.post-install
@@ -81,7 +83,6 @@ extras_web() {
 	pkgdesc="Meta package for additional Plasma mobile apps relying on qtwebengine"
 	install_if="$pkgname-extras=$pkgver-r$pkgrel"
 	_pmb_recommends="
-		angelfish
 		arianna
 		koko
 		neochat
@@ -92,6 +93,20 @@ extras_web() {
 	mkdir -p "$subpkgdir"
 }
 
+angelfish() {
+	install_if="$pkgname=$pkgver-r$pkgrel"
+	_pmb_recommends="angelfish"
+
+	mkdir -p "$subpkgdir"
+}
+
+firefox() {
+	install_if="$pkgname=$pkgver-r$pkgrel"
+	_pmb_recommends="firefox-esr mobile-config-firefox"
+
+	mkdir -p "$subpkgdir"
+}
+
 openrc() {
 	install_if="$pkgname=$pkgver-r$pkgrel openrc"
 	depends="