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>

1 files changed, 4 insertions, 4 deletions

diff --git a/client/src/app/+my-account/my-account-video-channels/my-account-video-channel-edit.component.html b/client/src/app/+my-account/my-account-video-channels/my-account-video-channel-edit.component.html
index 59ac5097b..048d143cd 100644
--- a/client/src/app/+my-account/my-account-video-channels/my-account-video-channel-edit.component.html
+++ b/client/src/app/+my-account/my-account-video-channels/my-account-video-channel-edit.component.html
@@ -59,7 +59,7 @@
           {{ formErrors['display-name'] }}
         </div>
       </div>
-    
+
       <div class="form-group">
         <label i18n for="description">Description</label>
         <textarea
@@ -70,7 +70,7 @@
           {{ formErrors.description }}
         </div>
       </div>
-    
+
       <div class="form-group">
         <label for="support">Support</label>
         <my-help
@@ -78,14 +78,14 @@
     When you will upload a video in this channel, the video support field will be automatically filled by this text."
         ></my-help>
         <my-markdown-textarea
-            id="support" formControlName="support" textareaWidth="500px" [previewColumn]="true" markdownType="enhanced"
+            id="support" formControlName="support" textareaMaxWidth="500px" markdownType="enhanced"
             [classes]="{ 'input-error': formErrors['support'] }"
         ></my-markdown-textarea>
         <div *ngIf="formErrors.support" class="form-error">
           {{ formErrors.support }}
         </div>
       </div>
-    
+
       <div class="form-group" *ngIf="isBulkUpdateVideosDisplayed()">
         <my-peertube-checkbox
           inputName="bulkVideosSupportUpdate" formControlName="bulkVideosSupportUpdate"