fix(Webcam): make webcam view non-draggable (#2057)

Co-authored-by: Stefan Dej <meteyou@gmail.com>

src/components/webcams/streamers/Mjpegstreamer.vue

@@ -4,6 +4,7 @@
             v-show="status === 'connected'"
             ref="image"
             class="webcamImage"
+            draggable="false"
             :style="webcamStyle"
             :alt="camSettings.name"
             src="#"

src/components/webcams/streamers/MjpegstreamerAdaptive.vue

@@ -4,6 +4,7 @@
             v-show="status === 'connected'"
             ref="image"
             class="webcamImage"
+            draggable="false"
             :style="webcamStyle"
             :alt="camSettings.name"
             src="#"

src/components/webcams/streamers/Uv4lMjpeg.vue

@@ -5,6 +5,7 @@
             v-observe-visibility="viewportVisibilityChanged"
             :style="webcamStyle"
             class="webcamImage"
+            draggable="false"
             @load="onload" />
     </div>
 </template>