Rewrite project, add daily update of services list

The project was rewritten from Elixir to Go, primarily because:

- I don't write Elixir anymore and don't want to maintain a project in a
  language I no longer write
- I already write Go for other projects, including my day job, so it's
  a safer bet for a project that I want to maintain long term
- Go allows me to build portable executables that will make it easier
  for others to run farside on their own machines

The Go version of Farsside also has a built in task to fetch the latest
services{-full}.json file from the repo and ingest it, which makes
running a farside server a lot simpler.

It also automatically fetches the latest instance state from
https://farside.link unless configured as a primary farside node, which
will allow others to use farside without increasing traffic to all
instances that are queried by farside (just to the farside node itself).

go.mod

@@ -0,0 +1,29 @@
+module github.com/benbusby/farside
+
+go 1.23.4
+
+require (
+	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/charmbracelet/lipgloss v0.10.0 // indirect
+	github.com/dgraph-io/badger/v4 v4.5.0 // indirect
+	github.com/dgraph-io/ristretto/v2 v2.0.0 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/go-logfmt/logfmt v0.6.0 // indirect
+	github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
+	github.com/google/flatbuffers v24.3.25+incompatible // indirect
+	github.com/klauspost/compress v1.17.11 // indirect
+	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
+	github.com/mattn/go-isatty v0.0.18 // indirect
+	github.com/mattn/go-runewidth v0.0.15 // indirect
+	github.com/muesli/reflow v0.3.0 // indirect
+	github.com/muesli/termenv v0.15.2 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/robfig/cron/v3 v3.0.0 // indirect
+	go.opencensus.io v0.24.0 // indirect
+	golang.org/x/exp v0.0.0-20231006140011-7918f672742d // indirect
+	golang.org/x/net v0.31.0 // indirect
+	golang.org/x/sys v0.27.0 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
+)