Add floating toolbar display mode option

[gadelkareem]

Summary of changes:
This commit introduces a new display mode option for the ChatGPT extension, allowing users to choose between a sidebar and a floating toolbar. The changes span across three files, implementing the new feature and updating the configuration options.

Key changes:

1. In src/config/index.mjs:

   • Added a new DisplayMode object with two options: sidebar and floating toolbar.
   • Updated the defaultConfig object to include a displayMode property.

2. In src/content-script/index.jsx:

   • Implemented logic to render either the existing sidebar or the new floating toolbar based on the user's display mode preference.
   • Added code to create and position the floating toolbar container.

3. In src/popup/sections/GeneralPart.jsx:

   • Added a new dropdown menu in the extension's settings to allow users to select their preferred display mode.

Overall, this commit enhances the extension's flexibility by giving users the option to choose how they want the ChatGPT interface to be displayed on web pages.

[josStorer]

f50249e 226fb10

Made some improvements, changed to a switch option, and made the effect comply with the user's trigger mode settings.