UX Toolkit: Input Field Improvements

Description

We decided as a team to explore an updated approach to the input fields and how labels, placeholders, and help/error text is presented to the user.

Considering the Material approach
https://material.io/components/text-fields/#outlined-text-field

QA Test Steps

None

Status

Mana

None

Assignee

Unassigned

QA Assignee

None

Reporter

Andrew Brown

Epic Link

Fix versions

Mattermost Team

UX

Sprint

None

QA Testing Areas

None

GitHub Issue

None

Components

None
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