feat(settings): add an option for smaller indents in trees (#1795)

Signed-off-by: Inf1mum <[email protected]>

src/bindings.ts

@@ -1760,6 +1760,8 @@ export type AppearanceSettings = {
 	redGreenVision?: boolean,
 	differentToolWindowBackground?: boolean,
 	compactMode?: boolean,
+	/**  IDEA "Use smaller indents in trees": tool window trees indent less per level. */
+	smallTreeIndents?: boolean,
 	fullPathInTitle?: boolean,
 	projectColorsInToolbar?: boolean,
 	dndWithAltOnly?: boolean,