Update RangeBar.js

[sergkop]

I also faced the bug #1144 - rangeBar doesn't correctly process fillColor from data items. It happens because of the for loop

apexcharts.js/src/charts/RangeBar.js

Line 110 in 41c220c

for (let ii = 0; ii < itemsLen; ii++) {

that results in a strange iteration sequence:

• The loop with j variable goes over all series items
• The first time a new x label is encountered all items with this label (srt) are processed in the ii loop. That's when each of them is rendered using the same j value and corresponding fillColor.
• For j corresponding to repeating labels the loop breaks at line 131 and no rendered items are indexed with it.

I've removed the ii loop, so that items are rendered directly in the j loop. It seems correct, but can possibly break compatibility with other scenarios (the tests were randomly failing for me).

Fixes #1144

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes