build: add support for Standard Go in Makefile and update .gitignore

Makefile

@@ -3,12 +3,18 @@ SHELL := /usr/bin/env bash
 
 PLUGIN_NAME := discord-rich-presence
 WASM_FILE := plugin.wasm
+TINYGO := $(shell command -v tinygo 2> /dev/null)
 
 test:
 	go test -race ./...
 
 build:
+ifdef TINYGO
 	tinygo build -opt=2 -scheduler=none -no-debug -o $(WASM_FILE) -target wasi -buildmode=c-shared .
+else
+	GOOS=wasip1 GOARCH=wasm go build -buildmode=c-shared -o $(WASM_FILE) .
+endif
+
 
 package: build
 	zip $(PLUGIN_NAME).ndp $(WASM_FILE) manifest.json