Update input component in team invite flow with a new input common component

Description

As discussed with , the input component in the team invite flow needs to be re-structured/styled. See https://github.com/mattermost/mattermost-webapp/pull/6415#pullrequestreview-491513283.

QA Test Steps

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Mana

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Assignee

Unassigned

QA Assignee

None

Reporter

Hossein Ahmadian

Epic Link

Fix versions

Mattermost Team

Web Platform

Sprint

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GitHub Issue

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Components

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