Document link calculation assumes service images are valid #306
Description
Compose files can just have a registry without anything after it so we need to protect against these cases.
services:
test:
image: mcr.microsoft.comruntime.boundsError runtime error: slice bounds out of range [18:17]
/home/runner/work/docker-language-server/docker-language-server/internal/pkg/server/server.go:218 (*Server).handleRecovered
/home/runner/work/docker-language-server/docker-language-server/internal/pkg/server/server.go:131 NewServer.func1
/home/runner/work/docker-language-server/docker-language-server/internal/tliron/glsp/protocol/handler.go:100 (*Handler).Handle.func1
runtime/panic.go:792 gopanic
runtime/panic.go:155 goPanicSliceB
/home/runner/work/docker-language-server/docker-language-server/internal/compose/documentLink.go:235 extractImageLink
/home/runner/work/docker-language-server/docker-language-server/internal/compose/documentLink.go:83 createImageLink
/home/runner/work/docker-language-server/docker-language-server/internal/compose/documentLink.go:156 scanForLinks
/home/runner/work/docker-language-server/docker-language-server/internal/compose/documentLink.go:216 DocumentLink
/home/runner/work/docker-language-server/docker-language-server/internal/pkg/server/documentLink.go:22 (*Server).TextDocumentDocumentLink
/home/runner/work/docker-language-server/docker-language-server/internal/tliron/glsp/protocol/handler.go:538 (*Handler).Handle
/home/runner/work/docker-language-server/docker-language-server/internal/tliron/glsp/server/handler.go:48 (*Server).handle
github.com/sourcegraph/jsonrpc2@v0.2.0/handler_with_error.go:21 (*HandlerWithErrorConfigurer).Handle
github.com/sourcegraph/jsonrpc2@v0.2.0/conn.go:205 (*Conn).readMessages