uninstall script in macos

[Marketen]

Makes dappnode_uninstall.sh compatible in macos:

• check OS like the install script does
• align dappnode path of DAPPNODE_DIR in linux & mac like it was defined in the install script
• added logic to not use colors when console printing (color_echo function). no ANSI on macOS to avoid \e issues

Nice to have:

• added protection against sourcing: If someone does source dappnode_uninstall.sh (or . dappnode_uninstall.sh), the rm -rf "${DAPPNODE_DIR}" and exit 1 would run in their current shell. The exit would close their terminal. The source guard prevents that.
• added Re-exec under bash if invoked by another shell (e.g. zsh). Ensures it runs under bash.

---

script output:

➜  scripts git:(pablo/install-script-macos) ✗ ./dappnode_uninstall.sh 
WARNING: This script will uninstall and delete all DAppNode
containers and volumes. Are You Sure? [Y/n] Y
Uninstalling DAppNode
Removing DAppNode containers: 
DAppNodeCore-vpn.dnp.dappnode.eth
DAppNodeCore-dappmanager.dnp.dappnode.eth
DAppNodeCore-ipfs.dnp.dappnode.eth
DAppNodeCore-https.dnp.dappnode.eth
DAppNodeCore-wireguard.wireguard.dnp.dappnode.eth
DAppNodeCore-api.wireguard.dnp.dappnode.eth
DAppNodeCore-bind.dnp.dappnode.eth
Removing DAppNode images: 
dappmanager.dnp.dappnode.eth                      0.2.71            65c677107a62   3 days ago      1.78GB
bind.dnp.dappnode.eth                             0.2.11            698a67b378b3   3 days ago      50.7MB
api.wireguard.dnp.dappnode.eth                    0.1.4             474bcd09cc87   3 days ago      163MB
wireguard.wireguard.dnp.dappnode.eth              0.1.4             402bfe21564b   3 days ago      278MB
vpn.dnp.dappnode.eth                              0.2.11            5d6eee574c53   3 days ago      124MB
stakers-metrics.dms.dnp.dappnode.eth              2.0.3             a1fd8d5e97a0   2 months ago    368MB
manager.dms.dnp.dappnode.eth                      2.0.3             a482325c0a10   2 months ago    107MB
prometheus.dms.dnp.dappnode.eth                   2.0.3             02decaf6a27b   2 months ago    479MB
grafana.dms.dnp.dappnode.eth                      2.0.3             f032d4e2c70e   2 months ago    932MB
loki.dms.dnp.dappnode.eth                         2.0.3             2512a61c9371   2 months ago    167MB
cadvisor.dms.dnp.dappnode.eth                     2.0.3             6e95a8bfaa10   2 months ago    92.5MB
node-exporter.dms.dnp.dappnode.eth                2.0.3             efad7fedcee0   4 months ago    39.5MB
operator.ssv-hoodi.dnp.dappnode.eth               0.1.2             668712aef6fa   4 months ago    373MB
dkg.ssv-hoodi.dnp.dappnode.eth                    0.1.2             8b34b0a2ee7a   4 months ago    27.2MB
immich-server.immich.dnp.dappnode.eth             0.1.0             29e5cc91faca   4 months ago    630MB
immich-machine-learning.immich.dnp.dappnode.eth   0.1.0             b6090237a76a   4 months ago    316MB
web3signer.web3signer-gnosis.dnp.dappnode.eth     1.0.14            9c28a483e8f9   4 months ago    1.26GB
flyway.web3signer-gnosis.dnp.dappnode.eth         1.0.14            235ccf213a95   4 months ago    750MB
postgres.web3signer-gnosis.dnp.dappnode.eth       1.0.14            44a493ac5d72   4 months ago    511MB
geth.gnosis-geth.dnp.dappnode.eth                 0.1.0             88bae2758373   4 months ago    28.2MB
database.immich.dnp.dappnode.eth                  0.1.0             b1d33572a9a0   4 months ago    205MB
brain.web3signer-gnosis.dnp.dappnode.eth          1.0.14            03976de700b2   5 months ago    455MB
tracker.web3signer-gnosis.dnp.dappnode.eth        1.0.14            aae9a0a330a6   6 months ago    41.9MB
redis.immich.dnp.dappnode.eth                     0.1.0             aa8c2978e521   6 months ago    43.7MB
dappnode-key-server-keyserver                     latest            5e21bea465e7   7 months ago    171MB
cluster-2.hoodi-obol.dnp.dappnode.eth             0.1.1             ea35f43fc39a   8 months ago    808MB
cluster-5.hoodi-obol.dnp.dappnode.eth             0.1.1             fa4b908a9f5a   8 months ago    808MB
cluster-1.hoodi-obol.dnp.dappnode.eth             0.1.1             35afc8855d92   8 months ago    808MB
cluster-3.hoodi-obol.dnp.dappnode.eth             0.1.1             e6f4a65d9db0   8 months ago    808MB
cluster-4.hoodi-obol.dnp.dappnode.eth             0.1.1             285be5693020   8 months ago    808MB
prometheus.hoodi-obol.dnp.dappnode.eth            0.1.1             5e584c31304f   8 months ago    357MB
operator.ssv.dnp.dappnode.eth                     0.1.6             7f5ec24eaa09   8 months ago    372MB
dkg.ssv.dnp.dappnode.eth                          0.1.6             3229f039a520   8 months ago    27MB
ipfs.dnp.dappnode.eth                             0.2.24            1b0b7fc5f53f   8 months ago    144MB
keymanager.premium.dnp.dappnode.eth               0.1.0             47584fd49a8e   9 months ago    9.23MB
sequencer.aztec-testnet.public.dappnode.eth       0.0.87            441d0c870bf6   9 months ago    354MB
register.aztec-testnet.public.dappnode.eth        0.0.87            271922e740e8   9 months ago    354MB
erigon.gnosis-erigon.dnp.dappnode.eth             1.0.1             48131c4064e3   9 months ago    325MB
uptime-kuma.uptime-kuma.public.dappnode.eth       0.1.0             dc35cea0002b   17 months ago   693MB
https.dnp.dappnode.eth                            0.2.2             e2dc06e23a78   19 months ago   673MB
ipfs.dnp.dappnode.eth                             0.2.23            c2d3cf5ed52c   22 months ago   165MB
Removing DAppNode volumes: 
local     buildx_buildkit_dappnode-multiarch-builder0_state
local     dappnode-key-server_keyserver-data
local     dncore_dappmanagerdnpdappnodeeth_data
local     dncore_ipfsdnpdappnodeeth_data
local     dncore_ipfsdnpdappnodeeth_export
local     dncore_portal-certs
local     dncore_portal-data
local     dncore_vpndnpdappnodeeth_config
local     dncore_vpndnpdappnodeeth_data
local     dncore_wg-config
Removing docker dncore_network
dncore_network
Removing DAppNode directory: /Users/marc/dappnode
DAppNode uninstalled!