Add default prompt for LLM

[RichDom2185]

Description

Partially supersedes #2554 together with #2657.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• Code quality improvements

Checklist

• I have tested this code
• I have updated the documentation

[RichDom2185]

Blocked by the backend PR still being coupled together, even though they are two different features.

[coveralls]

Pull Request Test Coverage Report for Build 8312768784

Details

• 2 of 21 (9.52%) changed or added relevant lines in 2 files are covered.
• 2 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.02%) to 38.44%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/commons/dropdown/DropdownCreateCourse.tsx	0	1	0.0%
src/pages/academy/adminPanel/subcomponents/CourseConfigPanel.tsx	2	20	10.0%

Files with Coverage Reduction	New Missed Lines	%
src/pages/academy/adminPanel/subcomponents/CourseConfigPanel.tsx	2	6.25%

Totals
Change from base Build 8312630473:	-0.02%
Covered Lines:	5671
Relevant Lines:	13810

---

💛 - Coveralls