feat(fe): balance conversion button and modal (#2491)

* feat: add balance conversion api declaration

* feat(fe): add conversion modal

* fix: show button when standplan and the user has manage permission

* feat: hide balance when <= 0

packages/web/components/common/Icon/icons/support/bill/wallet.svg

@@ -0,0 +1,5 @@
+<svg width="20" height="20" viewBox="0 0 20 20" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <path d="M3.35199 3.84415C1.90161 4.09989 0.933159 5.48298 1.1889 6.93337L1.66737 9.6469V6.69182C1.66737 5.58725 2.5628 4.69182 3.66737 4.69182H6.22296L14.2786 3.27139C15.0038 3.14352 15.6953 3.62775 15.8232 4.35294L15.883 4.69182H16.3326C16.6749 4.69182 16.9971 4.7778 17.2787 4.92933L17.1363 4.12141C16.8806 2.67103 15.4975 1.70257 14.0471 1.95832L3.35199 3.84415Z"/>
+  <path fill-rule="evenodd" clip-rule="evenodd" d="M0.834045 6.69182C0.834045 5.12702 2.10257 3.85849 3.66738 3.85849H16.3326C17.8974 3.85849 19.1659 5.12702 19.1659 6.69182V15.2493C19.1659 16.8141 17.8974 18.0827 16.3326 18.0827H3.66738C2.10257 18.0827 0.834045 16.8141 0.834045 15.2493V6.69182ZM3.66738 5.52516C3.02305 5.52516 2.50071 6.04749 2.50071 6.69182V15.2493C2.50071 15.8937 3.02305 16.416 3.66738 16.416H16.3326C16.9769 16.416 17.4993 15.8937 17.4993 15.2493V6.69182C17.4993 6.04749 16.9769 5.52516 16.3326 5.52516H3.66738Z"/>
+  <path d="M15.7836 11.0202C15.7836 11.7539 15.1889 12.3487 14.4552 12.3487C13.7215 12.3487 13.1268 11.7539 13.1268 11.0202C13.1268 10.2866 13.7215 9.69182 14.4552 9.69182C15.1889 9.69182 15.7836 10.2866 15.7836 11.0202Z"/>
+</svg>