Embed static admin resources on build, add goreleaser config

.goreleaser.yml

@@ -0,0 +1,32 @@
+before:
+  hooks:
+    - make clean
+    - go mod download
+    - go generate ./...
+builds:
+  - main: ./cmd/hetty
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+      - windows
+      - darwin
+    hooks:
+      pre: make embed
+archives:
+  - replacements:
+      darwin: Darwin
+      linux: Linux
+      windows: Windows
+      386: i386
+      amd64: x86_64
+checksum:
+  name_template: "checksums.txt"
+snapshot:
+  name_template: "{{ .Tag }}-next"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - "^docs:"
+      - "^test:"