Add maximized mode to markdown-textarea + CSS improvements (#2660)

* Add arrows-angle-contract/expand bootstrap icons

* Add grey textarea-background-color

* Add maximized support to markdown-textarea + improve column display

* Refactor CSS + add ResizeObservable

* Replace bootstrap icons with softies

* Add ResizeObserver typing definition

* Add focus on textarea + Fix Observables

* Propage component changes on markdown plugins

* Ignore ResizeObserver not implemented in typescript yet

* Move observers from constructor to click event

* Add scss and css variables

* Replace textareaWidth with textareaMaxWidth to fix others textareas

* Clean unused css rules

* Fix ResizeObserver unknown by TypeScript compiler

* Set max-width: 100% for small and mobile views

* Fix textarea/preview height on maximized mode

* Add common padding textarea/preview side-by-side

* Hide scrollbar sub-menu on small-views

* Add maximized mode for mobile views

* Fix sass calculate syntax

* Revert custom CSS variable for inputBorderRadius and inputBorderColor

* Remove unsued methods

* Fix missing implement method

Co-authored-by: kimsible <kimsible@users.noreply.github.com>

2 files changed, 2 insertions, 14 deletions

diff --git a/client/src/app/videos/+video-edit/shared/video-edit.component.html b/client/src/app/videos/+video-edit/shared/video-edit.component.html
index d59394538..9a0e4f848 100644
--- a/client/src/app/videos/+video-edit/shared/video-edit.component.html
+++ b/client/src/app/videos/+video-edit/shared/video-edit.component.html
@@ -232,7 +232,7 @@
               <label i18n for="support">Support</label>
               <my-help helpType="markdownEnhanced" i18n-preHtml preHtml="Short text to tell people how they can support you (membership platform...)."></my-help>
               <my-markdown-textarea
-                id="support" formControlName="support" textareaWidth="500px" [previewColumn]="true" markdownType="enhanced"
+                id="support" formControlName="support" markdownType="enhanced"
                 [classes]="{ 'input-error': formErrors['support'] }"
               ></my-markdown-textarea>
               <div *ngIf="formErrors.support" class="form-error">
diff --git a/client/src/app/videos/+video-edit/shared/video-edit.component.scss b/client/src/app/videos/+video-edit/shared/video-edit.component.scss
index de800b03f..2f9067132 100644
--- a/client/src/app/videos/+video-edit/shared/video-edit.component.scss
+++ b/client/src/app/videos/+video-edit/shared/video-edit.component.scss
@@ -161,18 +161,6 @@ p-calendar {
   }
 }
 
-::ng-deep my-markdown-textarea {
-  .root {
-    @include media-breakpoint-down(xl) {
-      flex-direction: column !important;
-    }
-
-    textarea {
-      max-width: 100%;
-    }
-  }
-}
-
 @include ng2-tags;
 
 // columns for the video
@@ -200,7 +188,7 @@ p-calendar {
   .col-video-edit {
     @include media-breakpoint-up(md) {
       @include make-col(8);
-  
+
       & + .col-video-edit {
         @include make-col(4);
       }