feat(Dialog): update Dialog according to P+ specs

[plagoa]

Notable changes Dialog component in this PR:

• no more semantic bar on the top of the semantic dialogs
• use HvStatusIcon on the dialog title
• no more top border on the dialog actions bar
• updated border radius on the dialogs
• fixed border radius on the fullscreen dialog (some unwanted border radius was showing)
• changed order of buttons on sample stories to adhere to PD norms

[Copilot]

Pull Request Overview

Updates the Dialog component and related stories to match Pentaho+ design specs, including icon handling, border styles, and button ordering.

• Removes semantic status bar and top borders in dialogs and actions
• Replaces legacy iconVariant logic with HvStatusIcon in titles
• Introduces dynamic content borders on overflow, updates dialog border radius, and reorders buttons in stories

Reviewed Changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
packages/lab/src/Wizard/WizardTitle/WizardTitle.tsx	Disable default icon rendering in wizard titles
packages/core/src/themes/pentahoPlus.ts	Add dialog border-radius and remove status bar/border styles
packages/core/src/themes/ds5.ts	Update dialog title icon color and remove content borders with !important
packages/core/src/themes/ds3.ts	Remove content borders and update dialog title icon color
packages/core/src/QueryBuilder/ConfirmationDialog/ConfirmationDialog.tsx	Disable default icon rendering in confirmation dialog title
packages/core/src/FileUploader/FileUploader.stories.tsx	Disable dialog title icon in file preview dialog story
packages/core/src/Drawer/Drawer.stories.tsx	Disable dialog title icon in drawer story
packages/core/src/Dialog/stories/SemanticVariantsStory.tsx	Swap button order, fix title variant, and use HvStatusIcon for custom icons
packages/core/src/Dialog/stories/MainStory.tsx	Swap actions order in main dialog story
packages/core/src/Dialog/stories/FormStory.tsx	Swap actions order in form dialog story
packages/core/src/Dialog/Title/Title.tsx	Import and use HvStatusIcon directly, replacing legacy iconVariant logic
packages/core/src/Dialog/Dialog.styles.tsx	Remove unwanted border radius for fullscreen dialogs
packages/core/src/Dialog/Content/Content.tsx	Add dynamic overflow border detection with ResizeObserver
packages/core/src/Dialog/Content/Content.styles.tsx	Update padding and add border classes for content overflow

Comments suppressed due to low confidence (1)

packages/core/src/Dialog/Content/Content.tsx:68

• [nitpick] The use of a CSS custom property (--content-border) for conditional borders is clever but may be non-obvious. Consider adding a brief comment explaining this pattern to ease future maintenance.

        ["--content-border" as string]: hasBorder

[plagoa]

@zettca reviewed after feedback