feat(client): remove canvas feature

Author: hiroppy

README.md

@@ -187,13 +187,10 @@ You can see your Note for each slide and the next slide on the Host screen.
 
 - Showing your slide notes
 - Setting a timer
-- Recording your actions and voice, and do time-travel
+- Recording your actions and voice, and doing time-travel
   - video: [Recording Your Voice](https://hiroppy.github.io/fusuma/docs/modes/presenter#recording-your-voice)
-- (experimental) Drawing lines on the slide during making a speech
 
-|               recording Your Actions                |            drawing Lines            |
-| :-------------------------------------------------: | :---------------------------------: |
-| ![](./site/docs/assets/presenter-mode-timeline.png) | ![](./site/docs/assets/drawing.png) |
+<img src="./site/docs/assets/presenter-mode-timeline.png" width="600px">
 
 ## Lighthouse
 

package-lock.json

@@ -153,17 +153,3 @@
   height: calc(100% - 60px);
   overflow: auto;
 }
-
-.host-slide-canvas {
-  width: 100%;
-  height: 100%;
-  position: relative;
-
-  & > * {
-    position: absolute;
-    width: 100%;
-    height: 100%;
-    top: 0;
-    left: 0;
-  }
-}

packages/client/assets/style/canvas.css

@@ -10,11 +10,6 @@
     top: 0;
     left: 0;
   }
-
-  /* canvas */
-  & > div {
-    z-index: 1000;
-  }
 }
 
 /* cannot use before/after for video tags, so should wrap div tags */
@@ -42,8 +37,3 @@
     z-index: 10;
   }
 }
-
-/* overwrite */
-.fusuma-canvas > canvas:first-child {
-  display: none !important;
-}