Add live area

[MarvinJWendt]

• feat: add ClearLinesUp and ClearLinesDown
• feat: implement Area

[codecov-commenter]

Codecov Report

Merging #3 (6452595) into main (3bebaa2) will decrease coverage by 8.03%.
The diff coverage is 10.52%.

@@            Coverage Diff             @@
##             main       #3      +/-   ##
==========================================
- Coverage   25.92%   17.89%   -8.04%     
==========================================
  Files           3        4       +1     
  Lines          81       95      +14     
==========================================
- Hits           21       17       -4     
- Misses         60       76      +16     
- Partials        0        2       +2     

Impacted Files	Coverage Δ
area.go	0.00% <0.00%> (ø)
utils.go	0.00% <0.00%> (ø)
cursor.go	35.71% <100.00%> (-14.29%)	⬇️
cursor_windows.go	27.90% <100.00%> (-4.66%)	⬇️

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