Started working on the frontend

- Added the new post frontend
- Hooked up publishing of posts to the site publisher
- Added an site exporter as a publishing target

Makefile

@@ -2,10 +2,27 @@ BUILD_DIR=build
 
 all: clean build
 
+.Phony: init
+init:
+	npm install --save-exact --save-dev esbuild
+
 .Phony: clean
 clean:
 	-rm -r $(BUILD_DIR)
 
+.Phony: frontend
+frontend:
+	npm install
+	npx esbuild --bundle ./assets/css/main.css --outfile=./static/assets/main.css
+
 .Phony: gen
 gen:
-	go run github.com/sqlc-dev/sqlc/cmd/sqlc@v1.30.0 generate
+	go run github.com/sqlc-dev/sqlc/cmd/sqlc@v1.30.0 generate
+
+.Phony: build
+build: frontend
+	go build -o ./build/weiro
+
+.Phony: run
+run: build
+	./build/weiro