Rewrite tooltip UI for efficiency and Vue 3.0 #230

- Introduce a new UI component for tooltips.
- Fix tooltip arrow misalignment issues in code download/execution
  instructions dialogs.

Reasons for dropping `v-tooltip` dependency:

- Lack of support for Vue 3.0, which blocks migration to Vue 3.0 (see
  #230).
- Inability to render HTML content that's required for privacy.sexy.
- Inefficient, adding an extra 162.48 KB to the production bundle for
  web distribution (tested using `npm run build -- --mode production`).

Advantages of adopting `floating-ui` (Floating UI):

- Compatibility across multiple Vue versions including 2.0, 2.7, and 3.0.
- Reduced boilerplate resulting in cleaner, more maintainable code.
- Efficient position recalculations without reinventing the wheel.

docs/presentation.md

@@ -20,7 +20,6 @@ The presentation layer uses an event-driven architecture for bidirectional react
     - [**`fonts/`**](./../src/presentation/assets/fonts/): Contains fonts.
     - [**`styles/`**](./../src/presentation/assets/styles/): Contains shared styles.
       - [**`components/`**](./../src/presentation/assets/styles/components): Contains styles coupled to Vue components.
-      - [**`vendors-extensions/`**](./../src/presentation/assets/styles/third-party-extensions): Contains styles for third-party components.
       - [**`main.scss`**](./../src/presentation/assets/styles/main.scss): Main Sass file, imported by other components as single entrypoint.
   - [**`main.ts`**](./../src/presentation/main.ts): Starts Vue app.
   - [**`electron/`**](./../src/presentation/electron/): Contains Electron code.