fix: hide all badges when no primary badge is selected

Update the badge display logic so that if a user hasn't selected
a primary badge, no badges are shown at all (instead of showing
all badges).

Changes:
- Remove else clause from profile badge section (only show badges-section div if primaryBadge is set)
- Remove else clause from comment badge display
- Update help text from "show all" to "hide all" in settings
- Update help text in admin profile edit modal to match
- Clarify that badge selection applies to both profile and comments

apps/frontend/src/app/components/comment-display/comment-display.component.ts

@@ -40,20 +40,6 @@ import { ReportModalComponent } from '../report-modal/report-modal.component';
                 @if (comment.user.primaryBadge === PrimaryBadge.DISCORD && comment.user.inDiscord) {
                   <span class="discord-badge">Discord</span>
                 }
-              } @else {
-                <!-- Show all badges if no primary badge is selected -->
-                @if (comment.user.isStaff) {
-                  <span class="staff-badge">Staff</span>
-                }
-                @if (comment.user.isMod) {
-                  <span class="mod-badge">Mod</span>
-                }
-                @if (comment.user.isVip) {
-                  <span class="vip-badge">VIP</span>
-                }
-                @if (comment.user.inDiscord) {
-                  <span class="discord-badge">Discord</span>
-                }
               }
               <span class="comment-date">{{ formatDate(comment.createdAt) }}</span>
               @if (canEditComment(comment)) {