added button to duplicate roadmap

[timobraz]

New button to duplicate currently selected roadmap.
Will copy the content of the selected roadmap and select the copy upon duplication.

Description

Screenshots

Before:

After:

Steps to verify/test this change:

• Verify changes work as expected on staging instance
• Check if all the courses are transferred over
• Check if all transfer courses are transferred over
• Check if copy number is incremented when you have two copies
• Check that if you save and reload all your roadmaps are there

Final Checks:

• Verify successful deployment

(optional)

• Write tests
• Write documentation

Issues

Closes #519

[Awesome-E]

Changes seem to work correctly, and code looks good! A couple things to note though:

• Transfers are separate from the roadmap so they're not really "copied" but rather it's just reading the same one. It does still work though
• I think it'd make more sense to have the duplicate button between the pencil and the trash can icons, because right now it's not clear (even with text) that "duplicate roadmap" refers to the current one (it may be confused as a button to open a selection menu). I don't know how technically difficult it would be to make it so that every roadmap can be duplicated easily, but I think it's worth exploring

[charlieweinberger]

LGTM. However, I agree with Ethan's 2nd point, and think if possible it should be implemented before merging with main. See AntAlmanac as an example.