fix(list): dense lists cut off descenders of letters like gjqpy

[Splaktar]

PR Checklist

Please check that your PR fulfills the following requirements:

• The commit message follows our guidelines
• Tests for the changes have been added or this is not a bug fix / enhancement
• Docs have been added, updated, or were not required

PR Type

What kind of change does this PR introduce?

[x] Bugfix
[ ] Enhancement
[ ] Documentation content changes
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Infrastructure changes
[ ] Other... Please describe:

What is the current behavior?

• dense lists cut off descenders of letters like gjqpy
• The basic list demo doesn't layout properly and overlaps on mobile

Issue Number:
Fixes #8890

What is the new behavior?

• dense lists do not cut off descenders of letters like gjqpy
• dense list spacing better aligns with the Material Design Spec
• update demo to include letters with descenders
• The basic list demo lays out properly and does not overlap on mobile

Does this PR introduce a breaking change?

[ ] Yes
[x] No

However, for some apps there may be a very small spacing change within list items. The overall list item height should not change except for very long text content with the md-long-text class which will increase by 4px.

Other information

Before

Note the cut off descenders, especially on the gs.

After

Before

Note that 2 phone numbers are cut off at the bottom.

After

Before

After

[jelbourn]

LGTM