refactor: move From/To with blockies into Identity block

Move From and To address fields (which include blockie identicons)
from the Value block into the Identity block, per review feedback.
From/To are identity information, not value information. The Value
block now contains only Amount, Native quantity, and Token contract.

README TransactionDetail section updated to match.

README.md

@@ -439,11 +439,14 @@ transitions.
   matching the Settings view pattern):
     - "Transaction" heading, "Back" button
     - **Identity block**:
-        - Blockie identicon (48px, centered, derived from transaction hash)
         - Transaction hash: full hash (tap to copy) + etherscan link
         - Type: transaction classification — one of: Native ETH Transfer, ERC-20
           Token Transfer, Swap, Token Approval, Contract Call, Contract Creation
         - Status: "Success" or "Failed"
+        - From: blockie + color dot + full address (tap to copy) + etherscan
+          link; ENS name if available
+        - To: blockie + color dot + full address (tap to copy) + etherscan link;
+          ENS name if available
     - **Timing block**:
         - Time: ISO datetime + relative age in parentheses
         - Block: block number (tap to copy) + etherscan block link
@@ -452,10 +455,6 @@ transitions.
         - Native quantity: raw integer + unit (shown when available)
         - Token contract: shown for ERC-20 transfers — color dot + full contract
           address (tap to copy) + etherscan token link
-        - From: blockie + color dot + full address (tap to copy) + etherscan
-          link; ENS name if available
-        - To: blockie + color dot + full address (tap to copy) + etherscan link;
-          ENS name if available
     - **Decoded details** (shown for contract calls):
         - Action name, decoded parameters, token details, swap steps
     - **Network details** (shown when on-chain data is available):

src/popup/index.html

@@ -1068,10 +1068,6 @@
                 <!-- ── Identity ── -->
                 <div class="bg-well p-3 mx-1 mb-3">
                     <h3 class="font-bold mb-1">Identity</h3>
-                    <div
-                        id="tx-detail-blockie"
-                        class="flex justify-center mt-1 mb-3"
-                    ></div>
                     <div class="mb-2">
                         <div class="text-xs text-muted mb-1">
                             Transaction hash
@@ -1092,6 +1088,17 @@
                         <div class="text-xs text-muted mb-1">Status</div>
                         <div id="tx-detail-status" class="text-xs"></div>
                     </div>
+                    <div class="mb-2">
+                        <div class="text-xs text-muted mb-1">From</div>
+                        <div
+                            id="tx-detail-from"
+                            class="text-xs break-all"
+                        ></div>
+                    </div>
+                    <div class="mb-2">
+                        <div class="text-xs text-muted mb-1">To</div>
+                        <div id="tx-detail-to" class="text-xs break-all"></div>
+                    </div>
                 </div>
 
                 <!-- ── Timing ── -->
@@ -1132,17 +1139,6 @@
                             class="text-xs break-all"
                         ></div>
                     </div>
-                    <div class="mb-2">
-                        <div class="text-xs text-muted mb-1">From</div>
-                        <div
-                            id="tx-detail-from"
-                            class="text-xs break-all"
-                        ></div>
-                    </div>
-                    <div class="mb-2">
-                        <div class="text-xs text-muted mb-1">To</div>
-                        <div id="tx-detail-to" class="text-xs break-all"></div>
-                    </div>
                 </div>
 
                 <!-- ── Decoded details ── -->

src/popup/views/transactionDetail.js

@@ -130,19 +130,6 @@ function render() {
     if (!tx) return;
     $("tx-detail-hash").innerHTML = txHashHtml(tx.hash);
 
-    // Blockie identicon for the transaction hash
-    const blockieEl = $("tx-detail-blockie");
-    if (blockieEl) {
-        blockieEl.innerHTML = "";
-        const img = document.createElement("img");
-        img.src = makeBlockie(tx.hash);
-        img.width = 48;
-        img.height = 48;
-        img.style.imageRendering = "pixelated";
-        img.style.borderRadius = "50%";
-        blockieEl.appendChild(img);
-    }
-
     const fromTitle = addressTitle(tx.from, state.wallets);
     const toTitle = addressTitle(tx.to, state.wallets);
     $("tx-detail-from").innerHTML = txAddressHtml(