Provide a Google Cloud compatibility & fix image embed syntax

[leolionart]

There are 2 problems with the current plugin that I want to improve:

1. I need to upload a lot of images when writing documents and with Firebase's capacity limit not allowing it, I also need a more stable storage location to avoid losing image links later
2. When embed image links are inserted as html <img src="URL" width="X"/> it will cause problems if I publish the document to other platforms that do not support this format. So what I need to do is convert it to ![1000](URL) according to Obsidian's native and correct markdown structure to support other markdown reading platforms.

[easternkite]

@leolionart

I have some doubts about this approach.
The ![size](url) syntax is not part of the standard Markdown specification and appears to be an Obsidian-specific extension. From a cross-platform compatibility standpoint, using an HTML <img> tag may actually be more reliable, since many Markdown renderers support embedded HTML but do not interpret size semantics in Markdown image syntax.