feat(i18n): enhance localization for chat and minigames

- Updated localization strings for chat and minigames across multiple languages, including Cebuano, German, English, Spanish, and French, to improve user experience and clarity.
- Added new translations for participant counts, user selection prompts, and game over messages, ensuring consistency and better engagement in the UI.
- Enhanced existing translations for accuracy and context, particularly in the TaxiGame component and chat functionalities.

frontend/src/dialogues/chat/MultiChatDialog.vue

@@ -42,7 +42,7 @@
                         <template v-if="msg.type === 'scream'">
                             <span class="scream-line" :style="msg.color ? { color: msg.color } : null">
                                 <span class="user">{{ msg.user }}</span>
-                                <span class="scream-label"> schreit:</span>
+                                <span class="scream-label">{{ $t('chat.multichat.screamColon') }}</span>
                                 <span class="text"> {{ (msg.text || '').toUpperCase() }}</span>
                             </span>
                         </template>
@@ -133,7 +133,7 @@
                     </div>
                     <div v-if="roomCreateValidation.range" class="room-create-error room-create-error-block">{{ roomCreateValidation.range }}</div>
                     <div class="room-create-preview">
-                        {{ $t('chat.multichat.createRoom.commandPrefix') }}: <code>{{ buildRoomCreateCommandPreview() || '/cr <raumname>' }}</code>
+                        {{ $t('chat.multichat.createRoom.commandPrefix') }}: <code>{{ buildRoomCreateCommandPreview() || $t('chat.multichat.commandPreviewFallback') }}</code>
                     </div>
                     <div class="owned-rooms-section">
                         <div class="owned-rooms-title">{{ $t('chat.multichat.createRoom.ownedRooms.title') }}</div>
@@ -157,11 +157,11 @@
                     </div>
                 </div>
                 <div class="user-list">
-                    <div class="user-list-header">Teilnehmer ({{ usersInRoom.length }})</div>
+                    <div class="user-list-header">{{ $t('chat.multichat.participantsWithCount', { count: usersInRoom.length }) }}</div>
                     <div class="user-list-items">
                         <div class="user-list-item" v-for="u in usersInRoom" :key="u.name"
                             :class="{ selected: selectedTargetUser === u.name }" @click="selectTargetUser(u.name)"
-                            title="Klicken zum Auswählen">
+                            :title="$t('chat.multichat.clickToSelectUser')">
                             <span class="user-dot"
                                 :style="{ backgroundColor: (u.color || userColors[u.name] || '#ccc') }"></span>
                             <span class="user-name"