fix: the user placeholder translation issue #8219 (#8233)

* :pencil2: user placeholder translation in authentication added

* Create node.js.yml

* Create npm-publish.yml

* Create deno.yml

* Create ci.yml

* Create stale.yml

* Delete deno.yml

* Delete npm-publish.yml

* Delete ci.yml

* Delete node.js.yml

* Delete ci.yml

* Create main.yml

* Delete stale.yml

* Delete main.yml

* Create ci.yml

* Create simpleCI.yml

* Update simpleCI.yml

* Revert "Delete stale.yml"

This reverts commit 27d88166b9.

* Revert "Delete main.yml"

This reverts commit 037cd96e71.

* Revert "Revert "Delete stale.yml""

This reverts commit 834d96e41c.

* Revert "Revert "Delete main.yml""

This reverts commit f69bc066f9.

* Revert "Revert "Revert "Delete stale.yml"""

This reverts commit d60372da56.

* Revert "Revert "Revert "Delete main.yml"""

This reverts commit 521ca60df3.

* Revert "Revert "Revert "Revert "Delete stale.yml""""

This reverts commit 1f2a9518e1.

* Revert "Revert "Revert "Revert "Delete main.yml""""

This reverts commit adf6c58f8e.

* Revert "Revert "Revert "Revert "Revert "Delete stale.yml"""""

This reverts commit 81c7ecc42f.

* Revert "Revert "Revert "Revert "Revert "Delete main.yml"""""

This reverts commit d1e1c03983.

* Revert "Revert "Revert "Revert "Revert "Revert "Delete stale.yml""""""

This reverts commit b5f16b3e4d.

* Revert "Revert "Revert "Revert "Revert "Revert "Delete main.yml""""""

This reverts commit f9ef5ab193.

* Revert "Revert "Revert "Revert "Revert "Revert "Revert "Delete stale.yml"""""""

This reverts commit b66bbf8698.

* Revert "Revert "Revert "Revert "Revert "Revert "Revert "Delete main.yml"""""""

This reverts commit 01a44daf95.

* Revert "Revert "Revert "Revert "Revert "Revert "Revert "Revert "Delete main.yml""""""""

This reverts commit eb896849a7.

* :fire: modifications dropped for all languages except for English

* Delete simpleCI.yml

* Delete stale.yml

lang/main-nb.json

     },
     "deepLinking": {
         "downloadApp": "Last ned programmet",
-        "openApp": "Fortsett til programmet",
+        "openApp": "Fortsett til programmet"
     },
     "defaultLink": "f.eks.",
     "deviceError": {

lang/main.json

         "tokenAuthFailedTitle": "Authentication failed",
         "transcribing": "Transcribing",
         "unlockRoom": "Remove meeting $t(lockRoomPassword)",
+        "user": "user",
         "userPassword": "user password",
         "WaitForHostMsg": "The conference <b>{{room}}</b> has not yet started. If you are the host then please authenticate. Otherwise, please wait for the host to arrive.",
         "WaitForHostMsgWOk": "The conference <b>{{room}}</b> has not yet started. If you are the host then please press Ok to authenticate. Otherwise, please wait for the host to arrive.",

modules/UI/UI.js

     const message
         = `<input name="username" type="text"
                 placeholder="user@domain.net"
+                data-i18n="[placeholder]dialog.user"
                 class="input-control" autofocus>
          <input name="password" type="password"
                 data-i18n="[placeholder]dialog.userPassword"

modules/UI/authentication/LoginDialog.js

     return `
         <input name="username" type="text"
                class="input-control"
+               data-i18n="[placeholder]dialog.user
                placeholder=${placeholder} autofocus>
         <input name="password" type="password"
                class="input-control"