chore: implement Hash common traits

[TieWay59]

Reorder the derive fields to be more consistent:

Debug, Default, Clone, Copy, Eq, PartialEq, Ord, PartialOrd, Hash

Hash trait won't be impl in this PR due to rust std design. If we need hash trait for f64 related structs in the future, we should consider wrap f64 into a new type.

see: #307

[TieWay59]

If we need a hash trait for f64-related structs in the future, we should consider wrapping f64 into a new type.

This has been done by some crates like: https://github.com/reem/rust-ordered-float

But, I don't think we need such high precision in terminal UI, I believe if precision is limited, we can always use int to represent most of the data struct values.

[codecov]

Codecov Report

Merging #381 (1757274) into main (de9f52f) will not change coverage.
The diff coverage is 54.09%.

@@           Coverage Diff           @@
##             main     #381   +/-   ##
=======================================
  Coverage   84.99%   84.99%           
=======================================
  Files          40       40           
  Lines        8686     8686           
=======================================
  Hits         7383     7383           
  Misses       1303     1303           

Files Changed	Coverage Δ
src/backend/crossterm.rs	0.00% <0.00%> (ø)
src/backend/mod.rs	33.33% <0.00%> (ø)
src/backend/termion.rs	27.46% <0.00%> (ø)
src/backend/test.rs	43.63% <0.00%> (ø)
src/layout.rs	89.18% <0.00%> (ø)
src/terminal.rs	55.73% <0.00%> (ø)
src/widgets/calendar.rs	81.06% <0.00%> (ø)
src/widgets/canvas/map.rs	0.00% <0.00%> (ø)
src/widgets/canvas/mod.rs	91.61% <0.00%> (ø)
src/widgets/clear.rs	0.00% <0.00%> (ø)
... and 21 more