Move the Pay page, Tour and language selector changesets to preview

- Split the core parts into their own entries: Driver.js lib, dropdown item tokens, flag sizing, input-group-flat addons

.changeset/angry-bananas-brake.md

@@ -1,5 +1,4 @@
 ---
-"@tabler/core": minor
 "@tabler/preview": minor
 ---
 

.changeset/driver-js-lib.md

@@ -0,0 +1,5 @@
+---
+"@tabler/core": minor
+---
+
+Added Driver.js to `libs.json` and `dist/libs` for product tours.

.changeset/dropdown-item-tokens.md

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+---
+"@tabler/core": minor
+---
+
+Added `--tblr-dropdown-item-gap`, `--tblr-dropdown-item-icon-size` and `--tblr-dropdown-item-icon-color` to `.dropdown-menu`.

.changeset/flag-width-tooltip-padding.md

@@ -0,0 +1,5 @@
+---
+"@tabler/core": patch
+---
+
+Updated `.flag` to size by width with `$border-radius-xs` on `xs`, and narrowed tooltip `padding-x` to `spacer-2`.

.changeset/input-group-flat-addons.md

@@ -0,0 +1,5 @@
+---
+"@tabler/core": patch
+---
+
+Updated `.input-group-flat` addons to drop the inner border and sit above the control.

.changeset/language-selector.md

@@ -1,5 +1,4 @@
 ---
-"@tabler/core": minor
 "@tabler/preview": minor
 ---
 

.changeset/silly-crabs-walk.md

@@ -1,6 +1,5 @@
 ---
-"@tabler/core": minor
 "@tabler/preview": minor
 ---
 
-Added Driver.js library integration and Tour demo page for interactive product tours and onboarding guides.
+Added Tour demo page using Driver.js for product tours and onboarding guides.