Releases for Iframe

Fixes undefined key and non working class-attribute

* Fixes #3367468 - Warning: Undefined array key "url"
* Fixes #3390012 - Class attribute no longer works

Bugfixes Q1/2023

* fixes issue #3330251 by Angel Neida: Inconsistency in sizes
* fixes issue #3332505 by Shubham Rathore: Update README.md file according to README.md template by
* fixes issue #3335057 by Sonal Gyanani: core_version_requirement not recognized before 8.7.7

Schema updater now supports adding-columns too.

Fixes #3294381 title attribute for accessibility,
Fixes #3305290 for drupal-10-compatibility,
Fixes #3285097 update hook to support units on width/height

Update to 1.x branch
* backport "headerlevel" from 8.x-2.x
* compatibility for druapl-10

Issue #3240069 by Nicolas S.: Width/Height required when url field is required; and STS reorder settings widget-settings -> field-settings -> default-settings

Issue #3253300: Allow full screen not working
first step to support feeds mapper, Issue #3190030
Issue #3250544 by olivierh65: Token not taken into account when validating the URL
Issue #3250544 - change other validate functions to to class-specific validate

Compatibility Fixes for drupal 9, twig usage and minimal support for usage in the pargraphs-module (validation)

* Issue #3231223 by Luca Lusso: Form validations doesn't work when the field is on a paragraph
* Issue #3231451 by neffets: Drupal 9 compatibility, show TWIG template
* Issue #3231451 by neffets: Drupal 9 compatibility (upgrade-status and rector)

fixes #3216287 schema/iframe;
fixes #3164593 token-support in url

* Fixes Issue #3204981 by jibran: Update config schema, ADD test for IframeSchema
* Fixes Issue #3204136 by itamair: Invalid URI Path in IframeDefaultFormatter unhandled exception

* fix issue #3198784 allow-attribute,
* fix issue #3199001 config schema

changes from last year ; fix for html5-attributes of iframe, supporting allow fullscrenn

Fixed issue #3136664 by FatherShawn: Cannot set default field values (e.g. url, title, width, or height)

Fixes for rendering and syntax

* take back last commit, leave only cache=0 for tokensupport
* Issue #3133359 by agoradesign: Render array sent to Markup::create in IframeOnlyFormatter.php
* fix devel_dump
* fixes Issue #3136739 by Phil Wolstenholme: Field widget help text displays twice
* Issue #3134596 by aluzzardi: Warning: strstr() expects at least 2 parameters
* Issue #3133949 by gabe.connolly: Duplicate iframe ids on content with more than one iframe
* fixes Issue #2973312 by michaelmol: Support for relative urls

bug fixed Issue #3129802 by natew: Undefined index errors throughout

phpcs-changes; and bugfix for undefined setting

fixed hook_uninstall and helptext now visible

Bugfix missing src for iframe

_DONT USE_
Bug fixed Issue #3128284: Can't uninstall with Drush pmu, see also Issue #3128522

last step before switching to twig branch 2.x

Fixed #3091781 by mparker17: SQLstate column not found error after updating - allowfullscreen column
Do db-upgrade!

Rollback release

The 1.10 tag-release was to early und a lot of bugs appeared, because the twig template did not match all display-variants.

I decided to go back to 1.9 and some bugfixes only - this is now the stable 8.x-1.x branch (currently recomended branch).

The twig-template development will be made and tested in the new 8.x-2.x devel branch

Issue #2775109: Feeds integration: mapper, initial support title and url
Issue #2987480 fixed bug from Issue #2903382

Fixed Issue #2889582: Hashtag causes invalid url
Fixed Issue #2962342 by frjo: Undefined index: #description in iframe_field_widget_form line 712
Fixed Issue #2960354 by fdverwoerd: Default iframe width value is not rendered properly on node edit form