fix(renderers, markdown, tables): Fixed handling of :text: for non-emoji

Closes #505

Author: OXY2DEV

lua/markview/renderers/markdown/tostring.lua

@@ -255,10 +255,11 @@ md_str.emoji = function (match)
 	local symbols = require("markview.symbols");
 	if symbols.shorthands and symbols.shorthands[removed] then
 		return symbols.shorthands[removed];
+	else
+		-- fix(#505): Return original text if it's not a shorthand
+		return match;
 	end
 
-	return removed;
-
 	---|fE
 end