rename frontend to web and update contributing guide (#2509)

* rename frontend to web and update contributing guide

* rename this time

* fix build

* restructure rust code

* update documentation

* update descriptions

* Update CONTRIBUTING.md

Co-authored-by: J H <2364004+Blu-J@users.noreply.github.com>

---------

Co-authored-by: Aiden McClelland <me@drbonez.dev>
Co-authored-by: Aiden McClelland <3732071+dr-bonez@users.noreply.github.com>
Co-authored-by: J H <2364004+Blu-J@users.noreply.github.com>

core/build-prod.sh

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+cd "$(dirname "${BASH_SOURCE[0]}")"
+
+set -e
+shopt -s expand_aliases
+
+if [ -z "$ARCH" ]; then
+	ARCH=$(uname -m)
+fi
+
+USE_TTY=
+if tty -s; then
+	USE_TTY="-it"
+fi
+
+cd ..
+FEATURES="$(echo $ENVIRONMENT | sed 's/-/,/g')"
+RUSTFLAGS=""
+
+alias 'rust-gnu-builder'='docker run $USE_TTY --rm -e "RUSTFLAGS=$RUSTFLAGS" -v "$HOME/.cargo/registry":/usr/local/cargo/registry -v "$(pwd)":/home/rust/src -w /home/rust/src -P start9/rust-arm-cross:aarch64'
+alias 'rust-musl-builder'='docker run $USE_TTY --rm -v "$HOME/.cargo/registry":/root/.cargo/registry -v "$(pwd)":/home/rust/src -P messense/rust-musl-cross:$ARCH-musl'
+
+set +e
+fail=
+echo "FEATURES=\"$FEATURES\""
+echo "RUSTFLAGS=\"$RUSTFLAGS\""
+if ! rust-gnu-builder sh -c "(cd core && cargo build --release --features avahi-alias,$FEATURES --locked --bin startbox --target=$ARCH-unknown-linux-gnu)"; then 
+	fail=true
+fi
+for ARCH in x86_64 aarch64
+do
+	if ! rust-musl-builder sh -c "(cd core && cargo build --release --locked --bin container-init)"; then 
+		fail=true
+	fi
+done
+set -e
+cd core
+
+sudo chown -R $USER target
+sudo chown -R $USER ~/.cargo
+
+if [ -n "$fail" ]; then
+	exit 1
+fi