ui: expose vulnerability analysis results (preview)

[hyangah]

Gopls issue: golang/go#52972

(And golang/go#50577 is a different type of analysis we are planning to add)

vulncheck-demo-480p.mov

[gopherbot]

Change https://go.dev/cl/392538 mentions this issue: gopls/internal/vulncheck: add cmd that runs govulncheck-like analysis

[gopherbot]

Change https://go.dev/cl/395575 mentions this issue: internal/lsp/command: add VulncheckArgs/Result types

[gopherbot]

Change https://go.dev/cl/395574 mentions this issue: gopls/internal/vulncheck: copy x/vuln/cmd/govulncheck/cache.go

[gopherbot]

Change https://go.dev/cl/395576 mentions this issue: internal/lsp/command: add RunVulncheckExp

[gopherbot]

Change https://go.dev/cl/395794 mentions this issue: src/goVulncheck.ts: create vulncheck command

[gopherbot]

Change https://go.dev/cl/402194 mentions this issue: src/goVulncheck: allow at most one command execution