fix: Speech balloon icon aliases

[tassoevan]

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• I have signed the CLA
• Lint and unit tests pass locally with my changes
• I have labeled the PR correctly with the related package
• I have run Loki's visual regression tests (if applicable)
• I have added tests that prove my fix is effective or that my feature works (if applicable)
• I have added necessary documentation (if applicable)
• Any dependent changes have been merged and published in downstream modules

Proposed changes (including videos or screenshots)

New icons:

• balloon
• balloon-off
• balloons
• balloon-arrow-left
• balloon-arrow-top-right
• balloon-close-top-right
• balloon-ellipsis
• balloon-exclamation

New aliases:

• message
• message-disabled
• baloons
• baloon-arrow-left
• baloon-arrow-top-right
• baloon-close-top-right
• baloon-ellipsis
• baloon-exclamation

Issue(s)

Further comments