fix(letter-mgmt): make share certificate bank identity dynamic and fix broken printing

- Certificate PDFs, the preview dialog, and both share-certificate list views
  (demo + live) now pull bank name/address/reg no/seal text from the
  Institution Profile instead of a hardcoded "Nexora" identity.
- Certificate preview dialog print CSS was clipped to the dialog's on-screen
  scroll viewport (maxHeight config); switched to position:fixed + unclipped
  overlay ancestors so the full certificate prints, not just a border sliver.
- Global print stylesheet now also hides the app shell's real 2-row nav menu
  (.main-header/.kpi-ticker, not routed through <mifosx-toolbar>) and frees
  the CDK sidenav/tab-body scroll clipping, so printing any page no longer
  captures the nav chrome or gets cut off to one screen's height.

src/app/shares/shares-account-view/share-certificate-dialog/share-certificate-dialog.component.scss

@@ -140,6 +140,8 @@
     }
 
     .meta-value {
+      font-family: Arial, Helvetica, sans-serif;
+      font-variant-numeric: tabular-nums;
       font-size: 15px;
       font-weight: bold;
       color: #322f2b;
@@ -226,12 +228,19 @@
 
   .lbl-col {
     background-color: #f7f5ee;
+    font-family: Georgia, 'Times New Roman', Times, serif;
     font-weight: bold;
     color: #7b6f63;
     width: 25%;
   }
 
+  // Every figure a member actually needs to read at a glance — share counts, amounts, dates, the
+  // resolution number — sits in this column. Georgia's numerals kept blurring into each other at
+  // this size, so values get a plain sans-serif with tabular figures instead; the label column
+  // keeps the certificate's own serif since it's static text, never a number to misread.
   .val-col {
+    font-family: Arial, Helvetica, sans-serif;
+    font-variant-numeric: tabular-nums;
     color: #322f2b;
     width: 25%;
   }
@@ -242,6 +251,7 @@
   }
 
   .lbl-col-highlight {
+    font-family: Georgia, 'Times New Roman', Times, serif;
     font-weight: bold;
     color: #0b3c5d;
     font-size: 14px;
@@ -251,6 +261,8 @@
   }
 
   .val-col-highlight {
+    font-family: Arial, Helvetica, sans-serif;
+    font-variant-numeric: tabular-nums;
     font-size: 16px;
     font-weight: bold;
     color: #b8860b; /* Dark Goldenrod */
@@ -270,6 +282,7 @@
     padding: 8px 12px;
     border: 1px solid #ede8db;
     background-color: #f7f5ee;
+    font-family: Georgia, 'Times New Roman', Times, serif;
     font-size: 11px;
     font-weight: bold;
     color: #7b6f63;
@@ -277,9 +290,14 @@
     letter-spacing: 0.6px;
   }
 
+  // Same reasoning as .val-col above: every cell here is a figure someone has to check against the
+  // register, so it reads in a plain sans-serif with tabular numerals rather than the certificate's
+  // decorative serif.
   td {
     padding: 9px 12px;
     border: 1px solid #ede8db;
+    font-family: Arial, Helvetica, sans-serif;
+    font-variant-numeric: tabular-nums;
     font-size: 13px;
     color: #322f2b;
   }