Style/frontend/visual updates

[yumeangelica]

• Visual enhancements:

  • Added custom CSS color variables.
  • Updated header texts in PageHome.
  • Implemented a unique background picture created with Procreate, adding a custom touch to the app's design.
  • Imported the Google font Krona, enhancing the app's text aesthetics.
  • Initiated app design with Figma, laying the groundwork for a comprehensive visual overhaul.
  • Updated styles in PagePet, PageLogin, PageProfile, TheNeedCard, TheHeader, and TheMobileHeader to align with the new design vision.

• Bug fixes and improvements:

  • Removed duplicate ion-content in PagePet and utilized currentDate as a key for optimized component rendering.
  • Fixed a mobile view bug in app.vue to improve responsiveness and user experience on mobile devices.