chore(types): a generic type for tool config added (#1517)

* Add a generic type to ToolSettings

* Update tool-settings.d.ts

Co-authored-by: Peter Savchenko <specc.dev@gmail.com>

docs/CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ### 2.19.2
 
+- `Improvements` - A generic type for Tool config added [#1516](https://github.com/codex-team/editor.js/issues/1516)
 - `Improvements` - Remove unused `force` option in `Caret.navigateNext()` and `Caret.navigatePrevious()` [#857](https://github.com/codex-team/editor.js/issues/857#issuecomment-770363438).
 - `Improvements` - Remove bundles from the repo [#1541](https://github.com/codex-team/editor.js/pull/1541).
 - `Fix` - Fix BlockManager.setCurrentBlockByChildNode() with multiple Editor.js instances [#1503](https://github.com/codex-team/editor.js/issues/1503).

types/tools/tool-settings.d.ts

@@ -18,8 +18,10 @@ export interface ToolboxConfig {
 
 /**
  * Object passed to the Tool's constructor by {@link EditorConfig#tools}
+ *
+ * @template Config - the structure describing a config object supported by the tool
  */
-export interface ToolSettings {
+export interface ToolSettings <Config extends object = any> {
 
   /**
    * Tool's class
@@ -29,7 +31,7 @@ export interface ToolSettings {
   /**
    * User configuration object that will be passed to the Tool's constructor
    */
-  config?: ToolConfig;
+  config?: ToolConfig<Config>;
 
   /**
    * Is need to show Inline Toolbar.