added special Bitcoin Hashtag with Icon

(S/O to tata)

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

@@ -0,0 +1,15 @@
+package com.vitorpamplona.amethyst.model
+
+import androidx.compose.ui.graphics.Color
+import com.vitorpamplona.amethyst.R
+fun checkForHashtagWithIcon(tag: String): HashtagIcon? {
+    if (tag.lowercase() == "bitcoin" || tag.lowercase() == "btc") {
+        return HashtagIcon(R.drawable.ht_btc, "Bitcoin", Color(0xFFf2A900))
+    }
+    return null
+}
+class HashtagIcon(
+    val icon: Int,
+    val description: String,
+    val color: Color
+)

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

@@ -1,39 +1,49 @@
 package com.vitorpamplona.amethyst.ui.components
 
 import android.util.Patterns
+import androidx.compose.animation.VectorConverter
 import androidx.compose.animation.animateContentSize
+import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border
-import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.text.ClickableText
+import androidx.compose.material.Icon
 import androidx.compose.material.LocalTextStyle
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Text
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Image
+import androidx.compose.material.icons.filled.MoreVert
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.compositeOver
+import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.SpanStyle
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.style.TextDecoration
 import androidx.compose.ui.text.style.TextDirection
+import androidx.compose.ui.text.toLowerCase
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.navigation.NavController
+import coil.ImageLoader
 import com.google.accompanist.flowlayout.FlowRow
 import com.halilibo.richtext.markdown.Markdown
 import com.halilibo.richtext.markdown.MarkdownParseOptions
 import com.halilibo.richtext.ui.RichTextStyle
 import com.halilibo.richtext.ui.material.MaterialRichText
 import com.halilibo.richtext.ui.resolveDefaults
+import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.model.LocalCache
+import com.vitorpamplona.amethyst.model.checkForHashtagWithIcon
 import com.vitorpamplona.amethyst.service.lnurl.LnInvoiceUtil
 import com.vitorpamplona.amethyst.service.nip19.Nip19
 import com.vitorpamplona.amethyst.ui.note.NoteCompose
@@ -230,12 +240,27 @@ fun HashTag(word: String, accountViewModel: AccountViewModel, navController: Nav
         null
     }
 
+
     if (tag != null) {
+        var txt = AnnotatedString("#$tag ")
+        val HashtagIcon = checkForHashtagWithIcon(tag)
+        if(HashtagIcon != null){
+            txt = AnnotatedString("#$tag")
+        }
         ClickableText(
-            text = AnnotatedString("#$tag "),
+            text = txt,
             onClick = { navController.navigate("Hashtag/$tag") },
             style = LocalTextStyle.current.copy(color = MaterialTheme.colors.primary)
         )
+        if(HashtagIcon != null){
+            Icon(
+                painter = painterResource(HashtagIcon.icon),
+                HashtagIcon.description,
+                tint =  HashtagIcon.color,
+                modifier = Modifier.size(20.dp).padding(0.dp,5.dp,0.dp,0.dp)
+
+            )
+        }
     } else {
         Text(text = "$word ")
     }