chore(repo): pin line-ending convention via .gitattributes

Without a committed .gitattributes, line-ending normalization on
commit depended on each contributor's local core.autocrlf setting,
so files could get re-flagged as changed by Obsidian Git purely due
to EOL churn with no actual content difference. Pin text=auto
eol=crlf repo-wide and renormalize stored blobs to match.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.obsidian/plugins/obsidian-html-tags-autocomplete/manifest.json

@@ -1,10 +1,10 @@
-{
-	"id": "obsidian-html-tags-autocomplete",
-	"name": "HTML Tags Autocomplete",
-	"version": "0.0.7",
-	"minAppVersion": "0.15.6",
-	"description": "Autocomplete HTML tags.",
-	"author": "Brian Carlsen",
-	"authorUrl": "https://github.com/bicarlsen",
-	"isDesktopOnly": false
-}
+{
+	"id": "obsidian-html-tags-autocomplete",
+	"name": "HTML Tags Autocomplete",
+	"version": "0.0.7",
+	"minAppVersion": "0.15.6",
+	"description": "Autocomplete HTML tags.",
+	"author": "Brian Carlsen",
+	"authorUrl": "https://github.com/bicarlsen",
+	"isDesktopOnly": false
+}