♻️ Simplify text bubble content shape

Remove html and plainText field because it was redundant

Closes #386

apps/builder/src/features/variables/helpers/parseVariableHtmlTags.ts

@@ -1,18 +0,0 @@
-import { Variable } from '@typebot.io/schemas'
-
-export const parseVariableHtmlTags = (
-  content: string,
-  variables: Variable[]
-) => {
-  const varNames = variables.map((variable) => variable.name)
-  return content.replace(/\{\{(.*?)\}\}/g, (fullMatch, foundVar) => {
-    if (content.includes(`href="{{${foundVar}}}"`)) return fullMatch
-    if (varNames.some((val) => foundVar === val)) {
-      return `<span style="background-color:#ff8b1a; color:#ffffff; padding: 0.125rem 0.25rem; border-radius: 0.35rem">${fullMatch.replace(
-        /{{|}}/g,
-        ''
-      )}</span>`
-    }
-    return fullMatch
-  })
-}