[Feature Request] Add 3 month calendar view and stopwatch widgets and/or custom app launcher

[marticliment]

Discussed in https://github.com/marticliment/ElevenClock/discussions/1275

^{Originally posted by bobo7777 October 25, 2023} As a TClock user I am missing the ability to have an integrated stopwatch and three month calendar view from my clock app. Would it be possible to add these features into Eleven Clock?

If this is not feasible, could we instead get the ability to define multiple custom applications to run and simply add the option to run each one for single/double/middle mouse click action?

Example:

Thanks