feat: assistant virtual list

[pixelass]

Motivation

adds virtual scrolling to prevent laggy scrolling on chats with long history

Known issues:

• Will always scroll to bottom when generationg. I could not find a way to implement the threshold of 200px
• Not a native scroll, therefore has several a11y issues (no keyboard scroll)

Issues closed

[codacy-production[bot]]

Coverage summary from Codacy

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Coverage variation	Diff coverage
:white_check_mark: +0.00% (target: -1.00%)	:white_check_mark: ∅

Coverage variation details

| | Coverable lines | Covered lines | Coverage | | ------------- | ------------- | ------------- | ------------- | | Common ancestor commit (9b5f1181b0daed10d015f42df6083db35139f109) | 2130 | 2002 | 93.99% | | | Head commit (5301c5a4b7001b3bdbebf14845c0aa7a6ba23976) | 2130 (+0) | 2002 (+0) | 93.99% (**+0.00%**) | **Coverage variation** is the difference between the coverage for the head and common ancestor commits of the pull request branch: ` - `

Diff coverage details

| | Coverable lines | Covered lines | Diff coverage | | ------------- | ------------- | ------------- | ------------- | | Pull request (#304) | 0 | 0 | **∅ (not applicable)** | **Diff coverage** is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: `/ * 100%`

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[pixelass]

closing. Might revisit when we run into performance issues of long chats. This solution has too many drawbacks to be justified.