…3153)

* add form-based validation elements

* add initial draft of inclusion of form-associated custom elements in people-picker

* apply review suggestions

* apply review comments

* adds in the types of the form validation properties

* Update specs/mgt-people-picker.md

---------

Co-authored-by: Gavin Barron <[email protected]>

…3179)

* fix people-picker placeholder luminosity contrast

* fix message contrast

…om styles (#3176)

…in mgt-file-list (#3177)

… colors (#3178)

* fix luminosity contrast

* update colors

* fix tabbing on channel picker icons

* revert sign-in changes

…#3188)

* Set the title and aria-label for the screen sizing buttons

* Use better comment statement

---------

Co-authored-by: Nickii Miaro <[email protected]>

* Focus on uploaded file and narrate status

* Use uploadDom as HTMLElement

Co-authored-by: Nickii Miaro <[email protected]>

* Make uploadDom an HTMLElement

* fix prettier issues

* Ignore unbound method rule in constructor

---------

Co-authored-by: Nickii Miaro <[email protected]>

…lanner (#3186)

* announce expanded/collapsed state of options menu

* fix menu item hover

* fix narration

---------

Co-authored-by: Musale Martin <[email protected]>

* use descriptive alt text for file icon

* Update packages/mgt-components/src/components/mgt-file/mgt-file.ts

Co-authored-by: Musale Martin <[email protected]>

* fix build

---------

Co-authored-by: Musale Martin <[email protected]>

* give feedback when no people are found

* revert to mgtHtml

* add aria-controlls to input field

* clear results when no userInput

* announce no results found

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Co-authored-by: Musale Martin <[email protected]>