[Refactor] Standardise code style - modern JS (#636)

Uses unicorn rules to auto-refactor code.  All verified.

src/LiteGraphGlobal.ts

@@ -72,7 +72,7 @@ export class LiteGraphGlobal {
   CONNECTING_LINK_COLOR = "#AFA"
 
   /** avoid infinite loops */
-  MAX_NUMBER_OF_NODES = 10000
+  MAX_NUMBER_OF_NODES = 10_000
   /** default node position */
   DEFAULT_POSITION = [100, 100]
   /** ,"circle" */
@@ -297,7 +297,7 @@ export class LiteGraphGlobal {
       }
     } else {
       this.getTime = function () {
-        return new Date().getTime()
+        return Date.now()
       }
     }
   }
@@ -446,8 +446,8 @@ export class LiteGraphGlobal {
     if (this.catch_exceptions) {
       try {
         node = new base_class(title)
-      } catch (err) {
-        console.error(err)
+      } catch (error) {
+        console.error(error)
         return null
       }
     } else {
@@ -554,8 +554,8 @@ export class LiteGraphGlobal {
         dynamicScript.src = src
         docHeadObj.append(dynamicScript)
         script_file.remove()
-      } catch (err) {
-        if (this.throw_errors) throw err
+      } catch (error) {
+        if (this.throw_errors) throw error
         if (this.debug) console.log("Error while reloading " + src)
       }
     }