Restart lndk after stack init

[mrfelton]

This pull request includes changes to the scripts/init.sh file, primarily aimed at improving the clarity of script execution and adding a new step in the script to restart LNDK nodes. The changes include adding new echo statements for better user feedback, modifying existing echo statements for clarity, moving the print_section function, and adding a new function to restart LNDK nodes.

Here are the most important changes:

Script execution clarity improvements:

• scripts/init.sh: Added echo statements to the setup function to provide feedback on the progress of the script.
• scripts/init.sh: Modified the echo statement in the waitForGraphSync function to provide a more precise estimate of the time required.

Function modifications:

• scripts/init.sh: Moved the print_section function to a higher location in the script for better organization and readability. [1] [2]
• scripts/init.sh: Added a new function restartLndkNodes to restart LNDK nodes as part of the script execution.

Script execution flow changes:

• scripts/init.sh: Added calls to the restartLndkNodes and getNodeInfo functions in the main function to include these steps in the script execution.