Merge/Dev 3.1.0-beta8

[ishiko732]

• Feat/rollback Card by @ishiko732 in #40
• Feat/forget by @ishiko732 in #42
• Fix/The calculated result of elapsed_days is incorrect in the revlog by @ishiko732 in #44
• Fix/Circular Dependencies by @ishiko732
• Chore/ compilation using Rollup by @ishiko732 in #46
• Chore/ delete fsrs.umd.js by @ishiko732 in #47
• Chore/ exports sourcemap by @ishiko732 in #48
• Refactor/Remove dotenv file and reduce repository size by 138KB by @ishiko732 in #49
• Fix/wrong scheduled_days in forget by @ishiko732 in #50
• Chore/example by @ishiko732 in #51

[github-actions[bot]]

Coverage report

St.:grey_question:	Category	Percentage	Covered / Total
🟢	Statements	88.36% (+2.48% 🔼)	243/275
🟢	Branches	86.52% (+6.27% 🔼)	77/89
🟡	Functions	73.02% (-4.18% 🔻)	46/63
🟢	Lines	87.97% (+2.54% 🔼)	234/266

Show files with reduced coverage 🔻

|

St.^{:grey_question:}

| File | Statements | Branches | Functions | Lines | | :---------------------------------------------------------------------------------------------------------------------------------------: | :------- | :------------------------------------------------------------- | :------- | :----------------------------------------------------------- | :------------------------------------------------------------- | | 🟢 | index.ts | 100% | 100% |

40% (-21.11% 🔻)

| 100% | | 🟢 | fsrs.ts |

91.78% (+4.99% 🔼)

| 88% |

88.89% (+13.89% 🔼)

|

91.67% (+4.87% 🔼)

|

Test suite run success

37 tests passing in 8 suites.

Report generated by 🧪jest coverage report action from 098082abf05233bf80640d73fefb56ac91449bc6