plugins update, added explore plugins

src/renderer/main/ciderfrontapi.js

@@ -10,6 +10,22 @@ const CiderFrontAPI = {
     AddMenuEntry(entry) {
         app.pluginMenuEntries.push(entry)
         app.pluginInstalled = true
+    },
+    StyleSheets: {
+        Add(href) {
+            console.log("Adding stylesheet: " + href)
+            let id = uuidv4()
+            let link = document.createElement("link")
+            link.rel = "stylesheet/less"
+            link.type = "text/css"
+            link.href = href
+            link.setAttribute("css-id", id)
+            // insert the link before document.querySelector("#userTheme") in head
+            document.querySelector("head").insertBefore(link, document.querySelector("#userTheme"))
+            less.registerStylesheetsImmediately()
+            less.refresh(true, true, true)
+            return link
+        }
     }
 }