fix(tests): stabilize e2e tests (#5512)

* fix(tests): add fixes for datepicker e2e tests stability (manual_trigger && themes_spec)

* fix(tests): stabilize e2e tests

Author: Domainv

cypress/support/base.component.ts

@@ -31,7 +31,7 @@ export abstract class BaseComponent {
 
   isBtnTxtEqual(baseSelector: string, expectedBtnTxt: string, buttonIndex?: number) {
     cy.get(`${ baseSelector } button`).eq(buttonIndex ? buttonIndex : 0).invoke('text')
-      .should(btnTxt => expect(btnTxt.trim()).to.equal(expectedBtnTxt));
+      .should(btnTxt => expect(btnTxt.trim()).to.equal(expectedBtnTxt.trim()));
   }
 
   isBtnDisabled(baseSelector: string, disabled: boolean, buttonIndex = 0) {
@@ -123,7 +123,7 @@ export abstract class BaseComponent {
   isButtonExist(baseSelector: string, buttonName: string, buttonNumber?: number, exist = true) {
     if (exist === true) {
       cy.get(`${baseSelector} button`).eq(buttonNumber ? buttonNumber : 0).invoke('text')
-        .should(btnTxt => expect(btnTxt.trim()).to.equal(buttonName));
+        .should(btnTxt => expect(btnTxt.trim()).to.equal(buttonName.trim()));
     } else {
       cy.get(`${baseSelector} button`).contains(buttonName).should('not.exist');
     }