v25.0.6: Fix bootstrap-datepicker and select2 integration for Bootstrap 5

Major improvements and fixes:

## Bootstrap-datepicker Integration
- Fix DPGlobal undefined error in date input
- Remove conflicting bdatepicker alias that was causing noConflict errors
- Add graceful error handling for missing bootstrap-datepicker dependency
- Implement proper initialization sequence for DPGlobal API
- Position datepicker above input with improved UX styling

## Select2 Integration & Compatibility
- Fix select2 integration with Select2 v4.1.0-rc.0
- Resolve issue where select2:select event fired but value didn't update
- Add event handler to manually update select2 value on selection
- Fix webpack build inconsistency between demo and standalone builds
- Remove redundant npm dependencies from demo (bootstrap-datepicker, select2)
- Implement proper Select2 v4 API usage for value setting

## Build System Improvements
- Fix webpack configuration to properly handle CSS imports
- Remove CSS file copying for npm dependencies, use webpack imports instead
- Ensure consistent input type registration across all build targets
- Clean up build output and remove debugging code

## Demo & Testing
- Update demo to use webpack source build for consistency
- Add comprehensive error handling and user feedback
- Clean up all debugging console output
- Improve demo page descriptions and usability

## Technical Fixes
- Fix 'Unknown type: select2' error in demo build
- Resolve value change detection preventing save operations
- Implement savenochange option for better UX
- Remove deprecated jQuery UI conflicts and aliases
- Update to modern webpack and build practices

dist/bootstrap5-editable/css/bootstrap-editable.css

@@ -1,4 +1,4 @@
-/*! X-editable Bootstrap 5 - v25.0.5 
+/*! X-editable Bootstrap 5 - v25.0.6 
 * A maintained fork of x-editable for Bootstrap 5 support.
 * https://git.24unix.net/tracer/x-editable
 * Copyright (c) 2025 Micha Espey; Licensed MIT */

dist/bootstrap5-editable/js/bootstrap-editable.js.LICENSE.txt

@@ -4,12 +4,6 @@
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
   */
 
-/*!
- * Datepicker for Bootstrap v1.10.0 (https://github.com/uxsolutions/bootstrap-datepicker)
- *
- * Licensed under the Apache License v2.0 (https://www.apache.org/licenses/LICENSE-2.0)
- */
-
 /*!
  * Select2 4.1.0-rc.0
  * https://select2.github.io