Fix: Restore Gravatar functionality, add button initials, toast duration

- Restore Gravatar functionality
- Add new button for "Use Initials"
- Set both buttons to use text-left class
- Update toast property autoClose to duration (wrong library, my bad!)
- Update toast messages to clarify that this isn't "Gravatar" but "avatar"
- Add i18n text to en-US/translation.json

src/lib/i18n/locales/en-US/translation.json

@@ -150,6 +150,7 @@
 	"Failed to read clipboard contents": "",
 	"File Mode": "",
 	"File not found.": "",
+	"Fingerprint spoofing detected: default profile picture set. Disable to access Initial avatar!": "",
 	"Focus chat input": "",
 	"Format your variables using square brackets like this:": "",
 	"From (Base Model)": "",
@@ -340,6 +341,7 @@
 	"URL Mode": "",
 	"Use '#' in the prompt input to load and select your documents.": "",
 	"Use Gravatar": "",
+	"Use Initials": "",
 	"user": "",
 	"User Permissions": "",
 	"Users": "",