update to 1.26.0

[dmceachernmsft]

Purpose

Update to version 1.26.0 of communication-react

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Pull Request Type

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

Upstream sample reference

Links to PR(s) that made the original change in the upstream sample:

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How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

Verify that the following are valid

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Other Information