Add progress and refactor iavlviewer

[anilcse]

No description provided.

[Copilot]

Pull Request Overview

This PR enhances the Tendermint dashboard UI with a block progress bar and utility components, updates application metadata and theming, and performs a major refactor of the IAVL viewer script into both CLI and web‐API modes.

• Added timeAgo util, CopyButton component, and block‐step progress animation in page.tsx
• Updated site metadata (SEO, OpenGraph, Twitter) and added favicon in layout.tsx
• Adjusted dark‐mode CSS variables in globals.css (potential issue)
• Fully refactored scripts/iavlviewer/main.go for CLI, JSON output, and HTTP API
• Added placeholder favicon.ico and updated contact links in README.md

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
src/app/page.tsx	UI: progress bar, copy buttons, timeAgo util, and fetch logic cleanup
src/app/layout.tsx	Metadata updates (title, description, OpenGraph, Twitter) and favicon link
src/app/globals.css	Dark‐mode CSS vars changed
scripts/iavlviewer/main.go	Major refactor: CLI/Server modes, API handlers, diff helpers
public/favicon.ico	Added placeholder favicon file
README.md	Updated contact & support links

Comments suppressed due to low confidence (4)

README.md:45

• The displayed email (hello@vitwit.com) doesn't match the mailto: link (contact@vitwit.com). Align the link target and display text.

- Email: [hello@vitwit.com](mailto:contact@vitwit.com)

README.md:47

• The display handle @vitwit differs from the linked profile @vitwit_. Update the display or link to match.

- Twitter: [@vitwit](https://twitter.com/vitwit_)

scripts/iavlviewer/main.go:637

• SampleData.KeyCount is never set, so it remains zero. Track the number of keys during iteration and assign it to KeyCount before returning.

	s1 := ms1.GetStoreByName(storeName)

[Copilot]

The dark‐mode background is set to #fff (white), matching the light theme. This likely isn't intended; restore a darker background for dark mode.

Suggested change

	--background: #fff;
	--foreground: #000;
	--background: #121212;
	--foreground: #e0e0e0;

[Copilot]

Removing the default focus outline can impair keyboard navigation. Consider adding a visible focus ring (e.g., focus:ring) rather than fully disabling it.

Suggested change

	className="ml-1 p-1 rounded hover:bg-gray-200 focus:outline-none"
	className="ml-1 p-1 rounded hover:bg-gray-200 focus:ring-2 focus:ring-blue-500"

[Copilot]

Compiling the regex on every call can be costly. Consider moving regexp.MustCompile to a package-level var so it's compiled only once.

Suggested change

	func decodeHexInLine(line string) string {
	re := regexp.MustCompile(`([0-9a-fA-F]{4,})`)
	return re.ReplaceAllStringFunc(line, func(hexStr string) string {
	var hexRegex = regexp.MustCompile(`([0-9a-fA-F]{4,})`)
	func decodeHexInLine(line string) string {
	return hexRegex.ReplaceAllStringFunc(line, func(hexStr string) string {