Fixed bug related to locked tools & select tool (#331)

packages/tldraw/src/components/ToolsPanel/PrimaryTools.tsx

         kbd={'7'}
         label={TDShapeType.Text}
         onClick={selectTextTool}
+        isLocked={isToolLocked}
         isActive={activeTool === TDShapeType.Text}
       >
         <TextIcon />

packages/tldraw/src/state/TldrawApp.ts

 
     this.addToSelectHistory(this.selectedIds)
 
-    if (this.appState.activeTool !== 'select') {
-      this.selectTool('select')
-    }
+    this.selectTool('select')
 
     return this
   }
     if (Date.now() - this.editingStartTime < 50) return
 
     const { editingId } = this.pageState
+    const { isToolLocked } = this.getAppState()
 
     if (editingId) {
       // If we're editing text, then delete the text if it's empty
       if (shape.type === TDShapeType.Text) {
         if (shape.text.trim().length <= 0) {
           this.patchState(Commands.deleteShapes(this, [editingId]).after, 'delete_empty_text')
-        } else {
+        } else if (!isToolLocked) {
           this.select(editingId)
         }
       }