Fix g_form console access in workspace for Utah/HR Agent

[ishitadatta]

Summary

Fixes the getGlideFormAW() helper so it works in Utah/HR Agent Workspace where sn-workspace-content is no longer always present.

What changed

• Replaced the hard-coded sn-workspace-content path with a shadow-DOM deep search helper.
• Added a primary lookup for configurable workspace via sn-form-data-connected.nowRecordFormBlob.gForm.
• Kept a fallback path for legacy workspace forms via .sn-workspace-form and React internals.
• Updated README notes for null-return behavior and usage in active record tabs.

Issue

• Closes g_form console access in workspace does not work in HR Agent workspace (Utah) #647

Notes

• This commit only includes the g_form console access in workspace snippet files.