CI: add extra config file for easier per-deployment veriations, add hetzner deploy script

scripts/hetzner/config.json

@@ -0,0 +1,4 @@
+{
+  "#":"Some configuration tweaks specifically for hetzner",
+  "country_coder_host": "https://countrycoder.mapcomplete.org/"
+}

scripts/hetzner/deployHetzner.sh

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+#! /bin/bash
+### To be run from the root of the repository 
+
+# Some pointers to get started:
+# apt install npm
+# apt install unzip
+# npm i -g csp-logger
+
+# wget https://github.com/pietervdvn/latlon2country/raw/main/tiles.zip
+# unzip tiles.zip
+
+MAPCOMPLETE_CONFIGURATION="config_hetzner"
+cp config.json config.json.bu &&
+cp ./scripts/hetzner/config.json . &&
+npm run prepare-deploy &&
+mv config.json.bu config.json &&
+zip dist.zip -r dist/* &&
+scp -r dist.zip hetzner:/root/ &&
+scp ./scripts/hetzner/config/* hetzner:/root/
+ssh hetzner -t "unzip dist.zip && rm dist.zip && rm -rf public/ mv dist public && caddy stop && caddy start"