[FIX] mail: enforce boolean value on computed fields of webRTC

closes odoo/odoo#77107

X-original-commit: ad9d6fd0f14a4d954940cf4cd5f4a2bcf91b81b5
Signed-off-by: Sébastien Theys (seb) <seb@odoo.com>
Signed-off-by: Alexandre Kühn (aku) <aku@odoo.com>

addons/mail/static/src/models/rtc_call_participant_card/rtc_call_participant_card.js

@@ -94,7 +94,7 @@ function factory(dependencies) {
          */
         _computeIsMinimized() {
             const callViewer = this.rtcCallViewerOfMainCard || this.rtcCallViewerOfTile;
-            return callViewer && callViewer.isMinimized;
+            return Boolean(callViewer && callViewer.isMinimized);
         }
 
         /**
@@ -110,7 +110,7 @@ function factory(dependencies) {
          * @returns {boolean}
          */
         _computeIsTalking() {
-            return this.rtcSession && this.rtcSession.isTalking && !this.rtcSession.isMuted;
+            return Boolean(this.rtcSession && this.rtcSession.isTalking && !this.rtcSession.isMuted);
         }
 
         /**