feat: course color generation (#179)

* feat: course color generation

* feat: add proper TS for hex colors

* refactor: fix oklab and improve contrast ratios

* fix: update HexColor type

* refactor: update color switch point

* refactor: color-related functions and types

* fix: imports and TS issues

* fix: imports and TS issues

* chore: add no-restricted-syntax ForInStatement

* chore(docs): add jsdoc

---------

Co-authored-by: doprz <52579214+doprz@users.noreply.github.com>

src/debug/index.tsx

@@ -29,6 +29,8 @@ function JSONEditor(props: JSONEditorProps) {
             setIsEditing(false);
         } catch (e) {
             console.error(e);
+
+            // eslint-disable-next-line no-alert
             alert('Invalid JSON');
         }
     };