[WIP] Add web client

Ignore .swp files

Rename serverCmd to apiCmd (the web client is technically a server too)

Add webCmd for html routes hosting

Add embedding and templating for web client

Add webhandlers

Fix some variables not being filled automatically by viper

Change flags and reorganize config structure

v4/web/webhandlers/handlers.go

@@ -0,0 +1,11 @@
+package webhandlers
+
+import (
+	"net/http"
+
+	"github.com/labstack/echo/v4"
+)
+
+func GetIndex(c echo.Context) error {
+	return c.Render(http.StatusOK, "index-html", nil)
+}