Update systemrequirements-zosmf-lite.md

[ArooshLele]

• Removed the bullet that mentioned Internet Explorer.
• Added text related to using Edge in IE mode under the Microsoft Edge bullet.

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😺 Thank you for creating this PR! To publish your content to Zowe Docs, follow these required steps.

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📁 The PR description is missing the file name(s) for the updated content. List all the files included in this PR so this information displays in our Zowe Docs GitHub Slack channel.

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