Show a gray shield when encrypted by deleted session (#6119)

Author: SimonBrandner

res/css/views/rooms/_EventTile.scss

@@ -432,31 +432,15 @@ $left-gutter: 64px;
     }
 }
 
-.mx_EventTile_e2eIcon_undecryptable, .mx_EventTile_e2eIcon_unverified {
+.mx_EventTile_e2eIcon_warning {
     &::after {
         mask-image: url('$(res)/img/e2e/warning.svg');
         background-color: $notice-primary-color;
     }
     opacity: 1;
 }
 
-.mx_EventTile_e2eIcon_unknown {
-    &::after {
-        mask-image: url('$(res)/img/e2e/warning.svg');
-        background-color: $notice-primary-color;
-    }
-    opacity: 1;
-}
-
-.mx_EventTile_e2eIcon_unencrypted {
-    &::after {
-        mask-image: url('$(res)/img/e2e/warning.svg');
-        background-color: $notice-primary-color;
-    }
-    opacity: 1;
-}
-
-.mx_EventTile_e2eIcon_unauthenticated {
+.mx_EventTile_e2eIcon_normal {
     &::after {
         mask-image: url('$(res)/img/e2e/normal.svg');
         background-color: $composer-e2e-icon-color;

src/components/views/rooms/EventTile.tsx

@@ -1405,25 +1405,25 @@ export function haveTileForEvent(e: MatrixEvent, showHiddenEvents?: boolean) {
 
 function E2ePadlockUndecryptable(props) {
     return (
-        <E2ePadlock title={_t("This message cannot be decrypted")} icon="undecryptable" {...props} />
+        <E2ePadlock title={_t("This message cannot be decrypted")} icon="warning" {...props} />
     );
 }
 
 function E2ePadlockUnverified(props) {
     return (
-        <E2ePadlock title={_t("Encrypted by an unverified session")} icon="unverified" {...props} />
+        <E2ePadlock title={_t("Encrypted by an unverified session")} icon="warning" {...props} />
     );
 }
 
 function E2ePadlockUnencrypted(props) {
     return (
-        <E2ePadlock title={_t("Unencrypted")} icon="unencrypted" {...props} />
+        <E2ePadlock title={_t("Unencrypted")} icon="warning" {...props} />
     );
 }
 
 function E2ePadlockUnknown(props) {
     return (
-        <E2ePadlock title={_t("Encrypted by a deleted session")} icon="unknown" {...props} />
+        <E2ePadlock title={_t("Encrypted by a deleted session")} icon="normal" {...props} />
     );
 }