Remove cursor position marker in console input bar when scrollbar is hidden

[mattrunyon]

DH-11364

[codecov]

Codecov Report

Merging #335 (569bc48) into main (0df2de5) will increase coverage by 3.12%.
The diff coverage is 0.00%.

❗ Current head 569bc48 differs from pull request most recent head 6d7fd1b. Consider uploading reports for the commit 6d7fd1b to get more accurate results

@@           Coverage Diff            @@
##            main    #335      +/-   ##
========================================
+ Coverage   2.82%   5.94%   +3.12%     
========================================
  Files          2       2              
  Lines        780     202     -578     
  Branches     328      35     -293     
========================================
- Hits          22      12      -10     
+ Misses       631     190     -441     
+ Partials     127       0     -127     

Flag	Coverage Δ
unit	5.94% <0.00%> (+3.12%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
packages/console/src/ConsoleInput.jsx	4.52% <0.00%> (ø)
packages/iris-grid/src/CrossColumnSearch.jsx
packages/iris-grid/src/TableUtils.js
packages/console/src/StoragePropTypes.js	100.00% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 0df2de5...6d7fd1b. Read the comment docs.

[mofojed]

Still seeing some artifacts when there's no overflow when on a line with parentheses: