[feat] Add support for chat stickers (#178)

# PR Checklist
- [x] Did you check if it works normally in all models? *ignore this
when it dosen't uses models*
- [x] Did you check if it works normally in all of web, local and node
hosted versions? if it dosen't, did you blocked it in those versions?
- [x] Did you added a type def?

# Description
- This commit adds support for chat stickers by allowing users to use
stickers in chat message window.
- The users can toggle show additional asset list using a button.
- Added Additional assets file extension data.
- Added option for additional assets preview.
- Optimized render when use streaming api. (prevent markdown again when
message not changed)
Added controls to Video/Audio Assets


[Video11.webm](https://github.com/kwaroran/RisuAI/assets/11344967/8980282f-d001-4afc-a6d9-6f6369b4cd4c)


[Video12.webm](https://github.com/kwaroran/RisuAI/assets/11344967/e0e153b8-eba6-48a5-b47d-d2dd287f32fd)

src/ts/storage/globalApi.ts

@@ -170,7 +170,7 @@ export async function readImage(data:string) {
     }
 }
 
-export async function saveAsset(data:Uint8Array, customId:string = ''){
+export async function saveAsset(data:Uint8Array, customId:string = '', fileName:string = ''){
     let id = ''
     if(customId !== ''){
         id = customId
@@ -182,13 +182,17 @@ export async function saveAsset(data:Uint8Array, customId:string = ''){
             id = uuidv4()
         }
     }
+    let fileExtension:string = 'png'
+    if(fileName && fileName.split('.').length > 0){
+        fileExtension = fileName.split('.').pop()
+    }
     if(isTauri){
-        await writeBinaryFile(`assets/${id}.png`, data ,{dir: BaseDirectory.AppData})
-        return `assets/${id}.png`
+        await writeBinaryFile(`assets/${id}.${fileExtension}`, data ,{dir: BaseDirectory.AppData})
+        return `assets/${id}.${fileExtension}`
     }
     else{
-        await forageStorage.setItem(`assets/${id}.png`, data)
-        return `assets/${id}.png`
+        await forageStorage.setItem(`assets/${id}.${fileExtension}`, data)
+        return `assets/${id}.${fileExtension}`
     }
 }