Feature/1976/multi tool multiple pages (#2200)

* Multitool - Select multiple pages for rotation tool

* Multitool multi select delete feature

* Multitool multi select UI improvements and big fixes

* Multitool multi select select all and UI improvements

* Multi tool multi select, download selected, clean up and bug fixes

* Comments

* Update buttons for page selection

* Update translation files

Signed-off-by: GitHub Action <action@github.com>

* Multitool multiselect split functionality and UI updates

* Download selected button, additional tooltips

* Update translation files

Signed-off-by: GitHub Action <action@github.com>

* revert CertSignController

* remove material icons

* restore to previous certsigncontroller

* Update CertSignController.java

---------

Signed-off-by: GitHub Action <action@github.com>
Co-authored-by: GitHub Action <action@github.com>
Co-authored-by: Anthony Stirling <77850077+Frooodle@users.noreply.github.com>

src/main/resources/messages_ca_CA.properties

@@ -140,7 +140,7 @@ navbar.darkmode=Mode Fosc
 navbar.language=Idiomes
 navbar.settings=Opcions
 navbar.allTools=Eines
-navbar.multiTool=Eines Múltiples
+navbar.multiTool=Multi Tool
 navbar.sections.organize=Organitzar
 navbar.sections.convertTo=Convertir a PDF
 navbar.sections.convertFrom=Convertir des de PDF
@@ -933,7 +933,14 @@ pdfOrganiser.placeholder=(p. ex. 1,3,2 o 4-8,2,10-12 o 2n-1)
 multiTool.title=Eina Multifunció de PDF
 multiTool.header=Eina Multifunció de PDF
 multiTool.uploadPrompts=Nom del fitxer
-
+multiTool.selectAll=Select All
+multiTool.deselectAll=Deselect All
+multiTool.selectPages=Page Select
+multiTool.selectedPages=Selected Pages
+multiTool.page=Page
+multiTool.deleteSelected=Delete Selected
+multiTool.downloadAll=Export
+multiTool.downloadSelected=Export Selected
 #view pdf
 viewPdf.title=Visualitza PDF
 viewPdf.header=Visualitza PDF