Typeahead support multiple values; 2 dropdowns on deploy chart changed to typeahead

[rashmirai21]

Description

Deploy chart

• Project and Environment dropdown is now typeahead.
• Option are sorted and are searchable.

User access

• Muti-value string is now supported in email address typeahead.

Others

• Resource deletion button label changed to Delete
• CD Pipeline update environment selection disabled on update

Fixes: (devtron-labs/devtron#479)
Closes: (devtron-labs/devtron#485)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

• Chart Deploy
• Chart Update
• User Save
• User Update

Checklist:

• The title of the PR states what changed and the related issues number (used for the release note).
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas