**Is your feature request related to a problem? Please describe.** <!-- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] --> Currently, after every change, for example in the .yaml file, the `mesh serve` has to be restarted for the change to be applied. **Describe the solution you'd like** <!-- A clear and concise description of what you want to happen. --> With each change the changes to be persisted.