Version v1.15.0

Fix: stylelint, jest dependency issues(3347ccc)
feat: disable cartoonified images(1b817df)
feat: add custom 404 icon(2b538f8)
feat: add cartoonified pages in control settings(981d351)
fix: tooltip opacity(6dabaf9)
fix: reduce auto-scroll width on small screen devices(c6f7ce9)
feat: add background and favourite shabads modals(52d0717)
fix: unwanted auth api call(b0c1d51)