Issue#130 and #144: Add collapsible form support

[saicheck2233]

Issue#130 and Issue#144: Add collapsible form support

Link: Issue#130 & Issue#144

Description: Add collapsible panel to the form. The schema below is used for enabling collapsible form

{
    "$schema": "http://json-schema.org/draft-03/schema#",
    "type": "object",
    "collapsible": true,
    "title": "Title Here",
    "properties": {
        "pageNum": {
            "type": "integer",
            "title": "Page number",
            "description": "Page number to be queried, `1-based`. See [Pagination](https://en.wikipedia.org/wiki/Pagination) for more details",
            "default": 1,
            "required": true
        }
    }
}

NOTE: Above implementation requires importing bootstrap-icons into your own webpage.

Pic before changes:

Pic after changes:

Collapsible form with title

Collapsible form without title.