Adds "₿itcoin" to the set of custom hashtags

app/src/main/java/com/vitorpamplona/amethyst/model/HashtagIcon.kt

@@ -32,6 +32,7 @@ fun checkForHashtagWithIcon(
     primary: Color,
 ): HashtagIcon? {
     return when (tag.lowercase()) {
+        "₿itcoin",
         "bitcoin",
         "btc",
         "timechain",

app/src/main/java/com/vitorpamplona/amethyst/ui/components/RichTextViewer.kt

@@ -623,14 +623,6 @@ private fun DisplayFullNote(
 
 @Composable
 fun HashTag(
-    word: HashTagSegment,
-    nav: (String) -> Unit,
-) {
-    RenderHashtag(word, nav)
-}
-
-@Composable
-private fun RenderHashtag(
     segment: HashTagSegment,
     nav: (String) -> Unit,
 ) {