Alignment with Carbon version 10.27 (#495)

* chore(deps-dev): bump devDependencies

* docs: update number of available carbon icons

* feat(notification): distinguish dispatched close event between click/timeout

* fix(notification): prevent class from being overriden by $$restProps

* docs(notification): improve example body copy

* fix(notification): remove notificationType prop

* refactor(notification): resolve svelte file in imports

* fix(notification): prevent class from being overridden by $$restProps

* feat(notification): update TS signature for dispatched close event

* docs: update contributing

* fix(loading): adjust spinner styles

* feat(tag): support custom icon variant

* feat(tile): add optional expand/collapse icon labels to ExpandableTile

* feat(code-snippet): support disabled state for single and multi-line types

* fix(code-snippet): remove impossible class directive

* fix(code-snippet): showMoreLess button size should be "field", not "small"

* fix(password-input): disable visibility button

- set default values for tooltipAlignment, tooltipPosition

* fix(text-input): add missing warning field wrapper class

* feat(button): infer hasIconOnly using $$slots API

- requires Svelte version >=3.25

* docs(button): add danger tertiary, icon-only example

* feat(button): set default values for tooltip alignment, position

* docs: document dynamic theming

* fix(modal): correctly set class props #482

* fix(form): forward submit event in FluidForm #487

* feat(dropdown): support warning state

* feat(multi-select): support warning state

* fix(multi-select): prevent dropdown from opening if disabled

* feat(number-input): support warning state

* chore(deps-dev): upgrade devDependencies

* docs:  bump @carbon/themes, carbon-components

* refactor(data-table): co-locate DataTableSkeleton with DataTable

* docs: update number of pictograms

* fix(password-input): add missing "bx--btn" class to visibility toggle

* docs: increase z-index for component preview

docs/src/pages/components/Button.svx

@@ -1,10 +1,7 @@
----
-description: High-level description
----
-
 <script>
   import { Button } from "carbon-components-svelte";
   import Add16 from "carbon-icons-svelte/lib/Add16";
+  import TrashCan16 from "carbon-icons-svelte/lib/TrashCan16";
   import Preview from "../../components/Preview.svelte";
 </script>
 
@@ -32,6 +29,12 @@ description: High-level description
 
 <Button kind="danger-tertiary">Danger tertiary button</Button>
 
+### Danger tertiary, icon-only button
+
+**Note:** you must provide an `iconDescription` for the button tooltip.
+
+<Button kind="danger-tertiary"iconDescription="Delete" icon={TrashCan16} />
+
 ### Danger ghost button
 
 <Button kind="danger-ghost">Danger ghost button</Button>
@@ -42,13 +45,15 @@ description: High-level description
 
 ### Icon-only button
 
-Set `hasIconOnly` to `true` to use the icon-only button variant.
-
 **Note:** you must provide an `iconDescription` for the button tooltip.
 
-The tooltip position and alignment can be controlled by the `tooltipPosition`, `tooltipAlignment` props, respectively.
+<Button iconDescription="Tooltip text" icon={Add16} />
 
-<Button hasIconOnly tooltipPosition="bottom" tooltipAlignment="center" iconDescription="Tooltip text" icon={Add16} />
+### Icon-only button (custom tooltip position)
+
+The tooltip position and alignment can be controlled by `tooltipPosition` and `tooltipAlignment`.
+
+<Button tooltipPosition="right" tooltipAlignment="end" iconDescription="Tooltip text" icon={Add16} />
 
 ### Link button