feat: 送信したフォローリクエストを確認できるように (#14856)

* FEAT: Allow users to view pending follow requests they sent

This commit implements the `following/requests/sent` interface firstly
implemented on Firefish, and provides a UI interface to view the pending
follow requests users sent.

* ux: should not show follow requests tab when have no pending sent follow req

* fix default followreq tab

* fix default followreq tab

* restore missing hasPendingReceivedFollowRequest in navbar

* refactor

* use tabler icons

* tweak design

* Revert "ux: should not show follow requests tab when have no pending sent follow req"

This reverts commit e580b92c37f27c2849c6d27e22ca4c47086081bb.

* Update Changelog

* Update Changelog

* change tab titles

---------

Co-authored-by: Lhc_fl <lhcfl@outlook.com>
Co-authored-by: Hazelnoot <acomputerdog@gmail.com>

locales/index.d.ts

@@ -10579,6 +10579,16 @@ export interface Locale extends ILocale {
          */
         "description3": ParameterizedString<"link">;
     };
+    "_followRequest": {
+        /**
+         * 受け取った申請
+         */
+        "recieved": string;
+        /**
+         * 送った申請
+         */
+        "sent": string;
+    };
 }
 declare const locales: {
     [lang: string]: Locale;