[Doc] Add JSDoc linter & general comment clean up (#611)

- Prefer comments above lines over end-of-line comments
  - Makes auto-formatting easier
  - Subjective, but it is generally easier to read in JS
- Standardises JSdoc format
- Auto-fixes for many issues (applies on save w/ESLint extension)

src/LiteGraphGlobal.ts

@@ -134,7 +134,8 @@ export class LiteGraphGlobal {
   debug = false
   catch_exceptions = true
   throw_errors = true
-  allow_scripts = false // if set to true some nodes like Formula would be allowed to evaluate code that comes from unsafe sources (like node configuration), which could lead to exploits
+  /** if set to true some nodes like Formula would be allowed to evaluate code that comes from unsafe sources (like node configuration), which could lead to exploits */
+  allow_scripts = false
   /** nodetypes by string */
   registered_node_types: Record<string, typeof LGraphNode> = {}
   /** used for dropping files in the canvas */
@@ -787,7 +788,8 @@ export class LiteGraphGlobal {
   hex2num(hex: string): number[] {
     if (hex.charAt(0) == "#") {
       hex = hex.slice(1)
-    } // Remove the '#' char - if there is one.
+    // Remove the '#' char - if there is one.
+    }
     hex = hex.toUpperCase()
     const hex_alphabets = "0123456789ABCDEF"
     const value = new Array(3)