fix: BiDi/RTL support

[alirezaalavi87]

Summary

Fixing the issue of BiDi, RTL text in boards.

Prior, Mixing RTL and LTR text would mess the UI
"یک دو three four پنچ"
"One دو سه four"

as you can see, Github also renders BiDi text correctly by adding dir=auto to text fields.

[alirezaalavi87]

@Rajat-Dabade
Can you look at this?

[Rajat-Dabade]

@alirezaalavi87 Can you fix the tests which are failing? Thank you.

[alirezaalavi87]

@Rajat-Dabade
I can't recreate the errors in my dev environment.
most of them are related to the snapshot test, I don't know how to update the snapshots and it isn't documented.
Rest of them are related to element keys for lists (which I didn't change in this PR).

running make ci returns this:

cd webapp; npm run test

> focalboard@9.0.0 test
> NODE_ENV=test jest



Test Suites: 0 of 149 total
Tests:       0 total
Snapshots:   0 total
Time:        0 smake: *** [Makefile:395: webapp-ci] Bus error (core dumped)

[mattermost-build]

This PR has been automatically labelled "stale" because it hasn't had recent activity.
A core team member will check in on the status of the PR to help with questions.
Thank you for your contribution!

[alirezaalavi87]

@alerque @Rajat-Dabade

Hi guys.

I still can't run the test and get the same error.
Maybe help me fix the issue or accept the changes.

thank you.