feat(i18n): translate the log levels, access events and calendar labels (#6226)

* feat(i18n): translate the log levels, access events and calendar labels

The log-level selector, the access-log event tags, the Sub Formats sidebar
entry and the calendar choices were hardcoded English, so a fully translated
locale still showed them in English on core screens.

Add eleven keys across the 13 locales and reference them. Russian and
Ukrainian are translated; the remaining locales carry the English string, the
same convention the existing files already use for untranslated entries.

Two module-level constants had to move: the calendar list and the access-event
map were built outside the component, where t is not in scope. The event map
now stores keys and resolves them at render.

* fix(i18n): keep the log export language-independent and fit the translations

Three follow-ups from review. The downloaded x-ui.log had started carrying the
translated event text, so its contents depended on the panel language and the
Russian value for PROXY contains a space in a field format whose other values
are single tokens. The export keeps DIRECT/BLOCKED/PROXY; only the on-screen
tag is translated.

The log-level select had a fixed 95px width sized for "Warning", which clips
"Предупреждение"; it now grows with its content.

The three access filters stayed English while the tags they filter became
translated, so they use the same keys.

---------

Co-authored-by: n0ctal <n0ctal@users.noreply.github.com>

frontend/public/mockServiceWorker.js

@@ -7,8 +7,8 @@
  * - Please do NOT modify this file.
  */
 
-const PACKAGE_VERSION = '2.14.7'
-const INTEGRITY_CHECKSUM = '4db4a41e972cec1b64cc569c66952d82'
+const PACKAGE_VERSION = '2.15.0'
+const INTEGRITY_CHECKSUM = '03cb67ac84128e63d7cd722a6e5b7f1e'
 const IS_MOCKED_RESPONSE = Symbol('isMockedResponse')
 const activeClientIds = new Set()
 
@@ -137,8 +137,18 @@ async function handleRequest(event, requestId, requestInterceptedAt) {
   if (client && activeClientIds.has(client.id)) {
     const serializedRequest = await serializeRequest(requestCloneForEvents)
 
+    // Omit the body of server-sent event stream responses.
+    // Cloning such responses would prevent client-side stream cancelations
+    // from reaching the original stream (a teed stream only cancels its
+    // source once both of its branches cancel) and would buffer the
+    // entire stream into the unconsumed clone indefinitely.
+    const isEventStreamResponse = response.headers
+      .get('content-type')
+      ?.toLowerCase()
+      .startsWith('text/event-stream')
+
     // Clone the response so both the client and the library could consume it.
-    const responseClone = response.clone()
+    const responseClone = isEventStreamResponse ? null : response.clone()
 
     sendToClient(
       client,
@@ -151,15 +161,17 @@ async function handleRequest(event, requestId, requestInterceptedAt) {
             ...serializedRequest,
           },
           response: {
-            type: responseClone.type,
-            status: responseClone.status,
-            statusText: responseClone.statusText,
-            headers: Object.fromEntries(responseClone.headers.entries()),
-            body: responseClone.body,
+            type: response.type,
+            status: response.status,
+            statusText: response.statusText,
+            headers: Object.fromEntries(response.headers.entries()),
+            body: responseClone ? responseClone.body : null,
           },
         },
       },
-      responseClone.body ? [serializedRequest.body, responseClone.body] : [],
+      responseClone && responseClone.body
+        ? [serializedRequest.body, responseClone.body]
+        : [],
     )
   }