docs(blendimage_filter.class.js) corrected mode options

[melchiar]

Removed unsupported mode options for blendimage filter and added variable type

[github-actions]

Code Coverage Summary

> fabric@5.0.0 coverage:report
> nyc report --reporter=lcov --reporter=text

-----------|---------|----------|---------|---------|-----------------------------------------------
File       | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s                             
-----------|---------|----------|---------|---------|-----------------------------------------------
All files  |   83.33 |    77.21 |   86.24 |   83.06 |                                               
 fabric.js |   83.33 |    77.21 |   86.24 |   83.06 | ...,30203,30328,30408-30473,30596,30695,30912 
-----------|---------|----------|---------|---------|-----------------------------------------------

[github-actions]

Code Coverage Summary

> fabric@5.0.0 coverage:report
> nyc report --reporter=lcov --reporter=text

-----------|---------|----------|---------|---------|-----------------------------------------------
File       | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s                             
-----------|---------|----------|---------|---------|-----------------------------------------------
All files  |   83.33 |    77.23 |   86.24 |   83.06 |                                               
 fabric.js |   83.33 |    77.23 |   86.24 |   83.06 | ...,30209,30334,30414-30479,30602,30701,30918 
-----------|---------|----------|---------|---------|-----------------------------------------------

[melchiar]

we really should have types indicated on all filter variables

[github-actions]

Code Coverage Summary

> fabric@5.0.0 coverage:report
> nyc report --reporter=lcov --reporter=text

-----------|---------|----------|---------|---------|-----------------------------------------------
File       | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s                             
-----------|---------|----------|---------|---------|-----------------------------------------------
All files  |   83.33 |    77.21 |   86.24 |   83.06 |                                               
 fabric.js |   83.33 |    77.21 |   86.24 |   83.06 | ...,30211,30336,30416-30481,30604,30703,30920 
-----------|---------|----------|---------|---------|-----------------------------------------------

[github-actions]

Code Coverage Summary

> fabric@5.0.0 coverage:report
> nyc report --reporter=lcov --reporter=text

-----------|---------|----------|---------|---------|-----------------------------------------------
File       | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s                             
-----------|---------|----------|---------|---------|-----------------------------------------------
All files  |   83.33 |    77.23 |   86.24 |   83.06 |                                               
 fabric.js |   83.33 |    77.23 |   86.24 |   83.06 | ...,30213,30338,30418-30483,30606,30705,30922 
-----------|---------|----------|---------|---------|-----------------------------------------------

[melchiar]

@asturur we seem to be a bit inconsistent with our doc structure. Do you have a preferred structure for tagging property types?

@type String
or
@param {String}

[asturur]

would be nicer to implement them XD

[asturur]

Skipping alpha manly.