fix(mobile): pass format to SaveAs

In the mobile app, `args.format` was typoed as `args.Format`, leading to
format always being undefined. This meant that the save as popup would
use the extension of the current file rather than the extension you were
trying to save as. You could workaround by editing this manually, but it
was annoying and not working as intended...

The browser version wasn't broken, as it uses a different code path to
save documents (see src/mixins/saveAs.js)

Signed-off-by: Skyler Grey <skyler.grey@collabora.com>

Author: Minion3665

cypress/e2e/direct.spec.js

@@ -183,12 +183,7 @@ describe('Direct editing (legacy)', function() {
 					.should('be.visible')
 				cy.get('.saveas-dialog input[type=text]')
 					.should('be.visible')
-					.should('have.value', 'document.odt')
-
-				cy.get('.saveas-dialog input[type=text]')
-					.clear()
-				cy.get('.saveas-dialog input[type=text]')
-					.type('/document.rtf')
+					.should('have.value', 'document.rtf')
 
 				cy.get('.saveas-dialog button.button-vue--vue-primary').click()
 

src/document.js

@@ -474,7 +474,7 @@ const documentsMain = {
 							SaveAs,
 							{
 								path: documentsMain.fileName,
-								format: args.Format,
+								format: args.format,
 							},
 							(value) => value && PostMessages.sendWOPIPostMessage('loolframe', 'Action_SaveAs', { Filename: value, Notify: true }),
 						)