ui: Update placeholders for adding new tier

[davidjumani]

Description

Fixes #5293

Adds a more understandable description for adding new network tiers

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)

Feature/Enhancement Scale

• Major
• Minor

Screenshots (if appropriate):

[davidjumani]

@blueorangutan ui

[blueorangutan]

@davidjumani a Jenkins job has been kicked to build UI QA env. I'll keep you posted as I make progress.

[blueorangutan]

UI build: ✔️
Live QA URL: http://qa.cloudstack.cloud:8080/client/pr/5326 (SL-JID-530)

[davidjumani]

@blueorangutan ui

[blueorangutan]

@davidjumani a Jenkins job has been kicked to build UI QA env. I'll keep you posted as I make progress.

[blueorangutan]

UI build: ✔️
Live QA URL: http://qa.cloudstack.cloud:8080/client/pr/5326 (SL-JID-531)

[utchoang]

It's works. Thanks @davidjumani

[nvazquez]

@davidjumani can you target this PR to branch 4.15?

[davidjumani]

@blueorangutan ui

[blueorangutan]

@davidjumani a Jenkins job has been kicked to build UI QA env. I'll keep you posted as I make progress.

[blueorangutan]

UI build: ✔️
Live QA URL: http://qa.cloudstack.cloud:8080/client/pr/5326 (SL-JID-534)

[yadvr]

@davidjumani minor nit - we probably don't want the colon : after parameter names, see other forms

[utchoang]

@davidjumani
In darkmode view, please remove style="color: rgba(0,0,0,.45)" in info icon.

[davidjumani]

@blueorangutan ui

[blueorangutan]

@davidjumani a Jenkins job has been kicked to build UI QA env. I'll keep you posted as I make progress.

[blueorangutan]

UI build: ✔️
Live QA URL: http://qa.cloudstack.cloud:8080/client/pr/5326 (SL-JID-537)