Added support for html content inside chat message. (#2134)

[pablodiazv]

Please read and mark the following check list before creating a pull request:

• I read and followed the CONTRIBUTING.md guide.
• I read and followed the New Feature Checklist guide.

Short description of what this resolves:

This resolve an small feature requested by #2134
Adds support for a new type of chat message: html that allows more options to automatic chatbots to include links, buttons and other html content.

[codecov]

Codecov Report

Merging #2413 into master will increase coverage by 0.03%.
The diff coverage is 77.77%.

@@            Coverage Diff             @@
##           master    #2413      +/-   ##
==========================================
+ Coverage   81.50%   81.54%   +0.03%     
==========================================
  Files         244      245       +1     
  Lines        7382     7391       +9     
  Branches      774      774              
==========================================
+ Hits         6017     6027      +10     
+ Misses       1136     1134       -2     
- Partials      229      230       +1     

Impacted Files	Coverage Δ
...rk/theme/components/chat/chat-message.component.ts	59.25% <ø> (ø)
src/framework/theme/components/chat/chat.module.ts	77.77% <ø> (ø)
...eme/components/chat/chat-message-html.component.ts	77.77% <77.77%> (ø)
...ramework/theme/components/toastr/toastr.service.ts	97.39% <0.00%> (+2.60%)	⬆️

[crates]

@pablodiazv / @akveo-private:

What's stopping this feature from getting merged? It's been almost a year since the initial pull request, and we REALLY need the ability to put links into messages.

[crates]

@akveo / @nnixaa / @mishkolesnikov / @Tibing / @yggg / @piotrbrzuska / @SashaSkywalker / @sashaqred / @elupanov:
Sorry to tag so many people from your team, but we really need movement on this item right away.
This is an important feature for us immediately. It looks like @pablodiazv solved it a year ago.
Is there any chance your team might be willing to quickly get this code merged to the trunk?

[andreipadolin]

It would be nice to move DomSanitizer SafeHtml into pipe.

[elupanov]

@pablodiazv we could merge the PR after this enhancement

[andreipadolin]

Hi @crates, first of all much appreciate your efforts in contributing. We a releasing a new feature that allow to use custom template messages including links and other html elements within next release. Please feel free to close your PR after that feature released.

[yggg]

Closed in #2750