Fix hashtags incorrectly detected inside URLs

[5t34k]

Description

When a URL contains a # fragment (e.g. https://example.com/page#section), the hashtag regex matches the fragment as a hashtag. The overlap removal logic already removes hashtags overlapping geohashes, and geohashes overlapping URLs, but did not remove hashtags overlapping URLs. Add the missing overlapsUrl check to the hashtag condition.

Fix

Add || overlapsUrl to the hashtag condition in ChatUIUtils.kt so hashtags inside URLs are filtered out.

How to reproduce

Send a message containing a URL with a fragment, e.g. https://example.com/page#section. The word "section" incorrectly appears as a hashtag.

Checklist

• I have read the contribution guidelines: https://github.com/permissionlesstech/bitchat-android?tab=readme-ov-file#contributing
• I have performed a self-review of my code

• I have mentioned the corresponding issue and the relevant keyword (e.g., "Closes: #xy") in the description (see https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue)
• If it is a core feature, I have added automated tests