fix(ig-requests): remove 10-character limit on icon field

[aprameyak]

Fixes the icon field on /dashboard/company/ig-requests rejecting URLs over 10 chars. Closes #328.

• removed .max(10) on icon in CreateIGRequestFormSchema
• removed the emoji placeholder on the input

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🔨 Latest commit	940fa2e

[greptile-apps]

Greptile Summary

This PR allows full icon URLs in the IG request form. The main changes are:

• Removes the 10-character validation limit from the icon field.
• Removes the short-string placeholder from the icon input.
• Adds a patch changeset for the form fix.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.

Important Files Changed

Filename	Overview
src/features/ig-requests/schemas/ig-requests.schema.ts	Removes the 10-character maximum while preserving required-field validation.
src/features/ig-requests/components/ig-request-form-dialog.tsx	Removes the misleading emoji or short-string placeholder without changing form behavior.
.changeset/fix-ig-request-icon-url.md	Adds a patch release note for the icon validation fix.

_{Reviews (1): Last reviewed commit: "fix(ig-requests): remove 10-character li..." | Re-trigger Greptile}