perf(render): optimize tag and rendering functions with inline attributes

- Add #[inline] attribute to `as_html` and `as_markdown` methods in Render struct
- Add #[inline(always)] attribute to `start` and `end` methods in Tag struct
- Add #[inline] attribute to `new` methods in SimpleTag and ComplexTag structs

crates/teloxide/src/utils/render/mod.rs

@@ -142,12 +142,14 @@ impl<'a> Render<'a> {
 
     /// Render and return the text as **Html-formatted** string.
     #[must_use]
+    #[inline]
     pub fn as_html(&self) -> String {
         self.format(&html::HTML)
     }
 
     /// Render and return the text as **Markdown-formatted** string.
     #[must_use]
+    #[inline]
     pub fn as_markdown(&self) -> String {
         self.format(&markdown::MARKDOWN)
     }

crates/teloxide/src/utils/render/tag.rs

@@ -9,10 +9,12 @@ pub struct Tag<'a> {
 }
 
 impl<'a> Tag<'a> {
+    #[inline(always)]
     pub const fn start(kind: Kind<'a>, offset: usize, index: usize) -> Self {
         Self { place: Place::Start, kind, offset, index }
     }
 
+    #[inline(always)]
     pub const fn end(kind: Kind<'a>, offset: usize, index: usize) -> Self {
         Self { place: Place::End, kind, offset, index }
     }
@@ -74,6 +76,7 @@ pub struct SimpleTag {
 }
 
 impl SimpleTag {
+    #[inline]
     pub const fn new(start: &'static str, end: &'static str) -> Self {
         Self { start, end }
     }
@@ -94,6 +97,7 @@ pub struct ComplexTag {
 }
 
 impl ComplexTag {
+    #[inline]
     pub const fn new(start: &'static str, middle: &'static str, end: &'static str) -> Self {
         Self { start, middle, end }
     }